Do you have a question about the Momentum and is the answer not in the manual?
Questions and answers
Milt
June 25, 2025
Our 2022 Grand Design Momentum 381M hot water heater is getting hot with both electric and propane. Hot water comes out the drain and the water heater mounted relief valve but not out of any of the faucets. Was working fine yesterday. I understand there is a mixing valve that may be faulty or need adjustment. Where would that valve be located? Thank You
Jesse Gant
June 18, 2025
On g 21class toy hauler does blue light on panel mean tanks are full?
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RV lifestyle as a family friendly form of leisure, recreation and fun. It is the intent of the Grand Design RV Team and our Dealer Partners to do our absolute best to assure that you enjoy a positive ownership experience and capitalize on all the exciting opportunities this “Grand”...
Momentum Owner's Manual INTRODUCTION ……………………………………………………………………………………5 REPORTING SAFETY DEFECTS…………………………………………………………………9 SERVICE & WARRANTY…………………………………………………………………………10 Grand Design RV, LLC ONE YEAR LIMITED BASE WARRANTY ……………………………17 Grand Design RV, LLC THREE YEAR LIMITED STRUCTURAL WARRANTY………………23 COMPONENT MANUFACTURER CONTACT INFORMATION ………………………………29 COMPONENT MANUFACTURER CONTACT INFORMATION ………………………………30 COMPONENT MANUFACTURER WARRANTY INFORMATION ……………………………31...
If you ever have any ques- tions, concerns or require assistance regarding any aspect of your RV, please contact your dealer or Grand Design RV. Our Customer Service contact information is: Contact Information:...
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The 17-digit vehicle identification number (VIN) is listed on the Federal Certification label and is stamped on a perma- nently affixed metal tag attached to the pin box. A breakdown of a typical Grand Design RV VIN is shown in the example below: SAE World Identifier: 573 —...
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Introduction Length: The number listed falls within a pre-determined, specified grouping that does not indicate the actual measured length of your RV. Model Year: E — 2014 F — 2015 G — 2016 H — 2017 J — 2018 K — 2019 Safety Precautions Nothing is more important than the personal safety of you, your family and others.
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Introduction (Safety alert symbols cont.) Additional terminology and symbols used: [Optional] This denotes items that may be an option on all or particular models. Additionally, some optional items can only be included during the manufacturing phase and cannot be added at a later date. The inclusion of optional items does not imply or suggest the availability, application, sustainability or inclusion for any specific unit.
National Highway Traffic Safety Admin- istration (NHTSA) in addition to notifying Grand Design RV. If NHTSA receives similar complaints, it may open an investi- gation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign.
7. Complete and return the “Warranty Registration and New Vehicle Pre-Delivery Inspection Check List” form within thirty (30) days from the date of delivery to Grand Design RV to activate your applicable warranty coverage. Owner’s Responsibilities As the owner, you are responsible for the regular care and proper maintenance of your RV.
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Service & Warranty in your satisfaction. Therefore, we recommend warranty and maintenance services be performed by your Grand Design RV dealer. As with your other personal belongings, it is important to protect yourself and others with insurance coverage. Your insurance agent can assist you in obtaining the appropriate insurance coverage for personal liability, theft, collision, prop- erty damage, etc.
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Design RV directly; otherwise, you are expected to pay them. b. Have the RV repair facility inspect your RV. Either they or you must call Grand Design RV Customer Service to discuss applicable warranty coverage prior to any repair work being performed.
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Obtaining Weekend or After Business Hours Emergency Repair Assistance If an authorized Grand Design RV dealer is not located near- by, contact your selling dealer for assistance. If your dealer is closed, check with the campground staff or telephone yellow pages for an RV repair facility.
SUMMARY What does this Warranty cover? Grand Design RV, LLC (“Warrantor”) provides this One (1) Year (“Warranty Period”) Limited Base Warranty [which begins to run from the earlier of (i) the date of purchase by the original retail con- sumer purchaser or (ii) when the recreational vehicle is put into service] against certain defects in ma-...
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Service & Warranty What types of things are excluded from the Warranty? This Warranty does not cover: Defects in any component parts or labor of the recreational vehicle which are not considered the RECREATIONAL VEHICLE or which were not manufactured by Warrantor; Defects in any items or labor which are covered by a separate warranty from the original manu- facturer of any part that is used by Warrantor in the RECREATIONAL VEHICLE;...
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Service & Warranty aa. Exterior paint or finish which is warranted independently by the paint manufacturer and/or inde- pendent applicator; bb. DEFACING: scratches, dents, and rust on any surface of the RECREATIONAL VEHICLE; and cc. EXCESS weight on the RECREATIONAL VEHICLE. WARRANTOR’S OBLIGATIONS - HOW TO GET WARRANTY SERVICES How Do You Get Service? In no event shall repair or replacement for a defect be covered under this Warranty unless the repair or replacement occurs at Warrantor’s facilities, or Warrantor’s designated repair shop or dealer.
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Service & Warranty What are the Dealer’s Responsibilities? • Perform a walk-through to assure that the customer understands the operation, use and safety requirements of the vehicle; • Review vehicle warranties, operating manuals and instruction guides; and • Inform the customer on how to obtain service, locally or while in transit; Warrantor is not responsible or liable for any failures, breaches, negligence, inattention or problems on the part of the Dealer.
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Service & Warranty Some states do not allow the exclusion or limitation or the exclusion may not apply to you. TO THE EXTENT NOT EXCLUDED IN THIS LIMITED WARRANTY, THE IMPLIED WARRANTY OF MERCHANTABILITY, AN UNWRITTEN WARRANTY THAT THE PRODUCT IS FIT FOR ORDINARY USE, IS LIMITED TO THE WARRANTY PERIOD OF THIS WRITTEN WARRANTY, AND ANY OTHER IMPLIED WARRANTY ARISING BY OPERATION OF LAW ARE SPECIFICALLY LIMITED TO THE WARRANTY PERIOD OF THIS WRITTEN WARRANTY TO THE EXTENT NOT ACTUALLY EXCLUDED IN THIS...
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Service & Warranty ATTORNEYS FEES Any warranty claim asserted or brought in violation of this Limited Warranty, or any claim brought against WARRANTOR, directly or indirectly, under which the Purchaser or any other person or entity seeks to broaden the terms of the Limited Warranty or under which the Purchaser or any other person fails to successfully prevail on any issue or matter of any type or nature, shall entitle Warrantor to recover its costs, damages, and reasonable attorney’s fees in connection with the same.
SUMMARY What does this Warranty cover? Grand Design RV, LLC (“Warrantor”) provides this Three (3) Year (“Warranty Period”) Limited Structural Warranty [which begins to run from the earlier of (i) the date of purchase by the original re- tail consumer purchaser or (ii) when the recreational vehicle is put into service] against certain defects...
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Service & Warranty The defective material or workmanship for which the warranty work and/or part is sought must be to the STRUCTURAL COMPONENTS only. 4. The other terms and conditions of this Limited Warranty must be satisfied. What types of things are excluded from the Warranty? This Warranty does not cover: Defects in any component parts or labor of the recreational vehicle which are not considered the STRUCTURAL COMPONENTS or which were not manufactured by Warrantor;...
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Service & Warranty Damage caused by unprotected electrical hook-ups (home or campground), power surges, light- ning, circuit overload or electrical system modifications; Damage caused by overloading or improper weight distribution; Damage caused by improper ventilation resulting in excessive condensation which results in water damage and/or mold or mildew; aa.
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Service & Warranty reasonable and necessary maintenance upon the recreational vehicle and STRUCTURAL COMPO- NENTS and use the recreational vehicle and STRUCTURAL COMPONENTS in accordance with the manufacturer of the recreational vehicle’s and Warrantor’s directions and recommendations. Among the other requirements under this Warranty, the Purchaser must also: •Maintain the recreational vehicle in accordance with the maintenance requirements contained in the Owner’s Manual;...
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Service & Warranty Some states do not allow the exclusion or limitation or the exclusion may not apply to you. TO THE EXTENT NOT EXCLUDED IN THIS LIMITED WARRANTY, THE IMPLIED WARRANTY OF MERCHANTABILITY, AN UNWRITTEN WARRANTY THAT THE PRODUCT IS FIT FOR ORDINARY USE, IS LIMITED TO THE WARRANTY PERIOD OF THIS WRITTEN WARRANTY, AND ANY OTHER IMPLIED WARRANTY ARISING BY OPERATION OF LAW ARE SPECIFICALLY LIMITED TO THE WARRANTY PERIOD OF THIS WRITTEN WARRANTY TO THE EXTENT NOT ACTUALLY EXCLUDED IN THIS...
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Service & Warranty ATTORNEYS FEES Any warranty claim asserted or brought in violation of this Limited Warranty, or any claim brought against WARRANTOR, directly or indirectly, under which the Purchaser or any other person or entity seeks to broaden the terms of the Limited Warranty or under which the Purchaser or any other person fails to successfully prevail on any issue or matter of any type or nature, shall entitle Warrantor to recover its costs, damages, and reasonable attorney’s fees in connection with the same.
Component Manufacturer Contact Information COMPONENT MANUFACTURER CONTACT INFORMATION All components listed are correct at the time of printing. Grand Design RV may change com- ponents mid-model year at their discretion. Please contact GDRV Customer Support for any questions. Component Manufacturer...
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Component Manufacturer Contact Information COMPONENT MANUFACTURER CONTACT INFORMATION All components listed are correct at the time of printing. Grand Design RV may change com- ponents mid-model year at their discretion. Please contact GDRV Customer Support for any questions. Component Manufacturer...
Component Warranty Information COMPONENT MANUFACTURER WARRANTY INFORMATION These warranties are subject to change at any time per the manufacturer. Details can be found on each manufacturer's website or by contacting them directly. Component Manufacturer Manufacturer Warranty Air conditioner with heat pump Coleman Two year limited warranty Air conditioner...
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Component Warranty Information COMPONENT MANUFACTURER WARRANTY INFORMATION These warranties are subject to change at any time per the manufacturer. Details can be found on each manufacturer's website or by contacting them directly. Component Manufacturer Manufacturer Warranty One year limited warranty from date of purchase. Pin box Lippert Components ORIGINAL OWNER ONLY...
Occupant Safety OCCUPANT SAFETY Your RV is designed with comfort and safety as a priority. It complies with applicable codes and safety standards in effect at the time it was built. A number of required safety items are installed for your safety and the safety of other occupants of the RV.
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Occupant Safety Pets may not be allowed into shelters for health and space reasons. Prepare an emergency plan for pets that includes at least a 3-day supply of dry food and a large container of wa- ter. The survival of a beloved pet often depends on the plans its owner has made in advance.
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Occupant Safety • Review the locations and operational instructions on the egress window label with all people staying in the • Plan fire escape routes. • Decide who will exit through the emergency escape windows first, and in what position. •...
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Occupant Safety Fire Extinguisher A portable fire extinguisher can save lives and property by putting out a small fire or containing it until the fire department arrives; but portable extinguishers have limitations. It is im- portant to recognize when to leave the RV. Because fire grows and spreads so rapidly, the number one priority is to get out safely.
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Occupant Safety Smoke Alarm Three of the most common fire safety issues are smoking in bed, leaving children unattended and cleaning with flamma- ble fluids. There is no way to guarantee against injury or loss of life in a fire; however, the smoke alarm is intended to help reduce those risks.
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Occupant Safety Battery The smoke alarm will not function if the battery is missing, disconnected, dead, the wrong type of battery is used or the battery is installed incorrectly. When the 9-volt battery becomes weak, the smoke alarm will "chirp” (the low bat- tery warning).
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Occupant Safety Combination Carbon Monoxide/Propane Alarm Your RV is equipped with a combination carbon monoxide (CO)/propane alarm listed for use in recreation vehicles that will only work if it is operational and maintained. It has two electronic self-cleaning sensors that operate independently of each other.
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Occupant Safety • Simultaneous CO and gas alarms - Because the risk of a propane gas explosion is generally a more se- rious danger, the combination alarm unit gives the gas alarm a higher priority during simultaneous alarm condition. If the combination alarm generates alarms for both gas and CO at the same time, the gas LED will flash RED and the beeper will sound.
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Occupant Safety • MALFUNCTION/SERVICE SIGNAL: If any malfunc- tion is detected, the gas LED will remain off and the Operational/CO LED will alternate RED/GREEN and the alarm will sound once every fifteen (15) seconds. Press the Test/Mute button. If the Test/Mute button does not clear the signals, check the auxiliary battery voltage.
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Occupant Safety 3. Immediately move to fresh air (outdoors or by an open door/window). Check that all persons are accounted for. Do not reenter the premises or move away from the open door/window until the emergency responders have arrived, the premises have been aired out and your alarm remains in its normal operation.
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Occupant Safety • To test the CO sensor use a can of SAFE-T-ALERT CO test gas to test the 400 ppm calibration point. DO NOT TRY TO GENERATE CO TO TEST THE ALARM. Press and hold the TEST/Mute switch (located on the front of the alarm) for one (1) second.
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Occupant Safety side. High temperatures and humidity levels can also increase concentrations of some air pollutants. Those people most at risk for poor indoor air quality include: people with asthma, people with allergies, people who have chronic lung diseases such as bronchitis and emphysema, people with pre-existing heart disease, children, and the elderly.
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Occupant Safety • Ventilation: To reduce or lessen exposure to chemicals from off-gassing it is of utmost importance that you ventilate your RV. Ventilation should occur frequently after purchase and at times when the temperatures and humidity are elevated. Remember off-gassing is accelerated by heat and humidity. Open windows, exhaust vents, and doors.
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Occupant Safety ache, nausea, and a variety of asthma-like symptoms. Elderly persons and young children, as well as anyone with a history of asthma, allergies or lung problems, may be more suscepti- ble to the effects of off-gassing. Formaldehyde Most of the attention regarding chemical off-gassing sur- rounds formaldehyde.
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Occupant Safety Condensation Just as moisture collects outside of a glass of cold water during humid weather, moisture can condense on the inside surfaces of the RV during cold weather when relative humidity of the interior air is high. This condition is increased because the insulated walls of a RV are much thinner than house walls.
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Occupant Safety • Use a fan to keep air circulating inside the vehicle so condensation and mildew cannot form in dead air spaces. Allow air to circulate inside closets and cab- inets (leave doors partially open) so the temperature inside the cabinets the same as in the rest of the unit.
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Occupant Safety Frequent use of your RV or cleaning regularly is an im- portant preventative measure. Further, any spills should be wiped up quickly and dried as soon as possible. Avoid leaving damp items lying about. On safe surfaces, use mold or mildew killing cleaning products.
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Your use of these web- sites are at your own risk. Grand Design RV shall have no liability whatsoever for any errors, omissions or inaccuracies in the information regardless of how caused or for delays or...
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Occupant Safety site. Grand Design RV is not responsible for the availability or content of these external or third party sites and does not endorse, warrant or guarantee any products, services, information, centers or schools described or offered at these links.
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Occupant Safety Generator Operation — Always make sure generators (cus- tomer supplied) are operated in open outdoor areas where the exhaust can properly dissipate and not create a carbon monoxide danger. Windows and any other openings near the generator exhaust should be closed and sealed to prevent the permeation of exhaust gas.
Pre-Travel Information PRE-TRAVEL INFORMATION To help ensure your traveling enjoyment, call ahead for tourist information in each area that you will be visiting or traveling through. To help eliminate frustration, make sure you obtain the most current road maps. Research and make sure there are no federal, state or local regulations that may prohibit you from fully enjoying your camping adventure.
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RV. If any decal, data or instruction plate is painted over, dam- aged or removed, it should be replaced. Weight Ratings & Definitions Ratings are limits established by Grand Design RV and our component manufacturers which are not to be exceeded. Exceeding a rating may result in unsafe conditions, potential damage, may void a warranty, may complicate an insurance claim, and in some cases, may violate a law.
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Vehicle weight labels are affixed to your RV to help you make an informed decision before your purchase. Do not remove these labels. If the labels are missing, contact your dealer or Grand Design RV Customer Service for replacements. Federal Certification Label This label specifies maximum capacities for GVWR, GAWR and tires.
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1,200 lbs. The actual weight on the RV tires is 7,800 lbs., which is within the weight rating of the tires. If you have further questions, please contact your dealer or Grand Design RV Customer Service.
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Pre-Travel Information Loading Your RV Store and secure all loose items inside the RV before trav- eling. Overlooked items such as canned goods, or small appliances on the countertop, cooking pans on the range or free-standing furniture items can become dangerous projec- tiles during a sudden stop.
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Pre-Travel Information 3. Weigh the RV while attached to but excluding the tow vehicle. This will result in the actual weight that is exert- ed on all of the RV tires. This weight may be subtracted from the overall RV GVWR to determine the actual “tongue”...
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Pre-Travel Information weight in your vehicle than your tires or vehicle can safely handle), avoiding road hazards, driving within the designated tire speed ratings, and inspecting tires for cuts, slashes, and other irregularities are the most important things you can do to avoid tire failure, such as tread separation or blowout and flat tires.
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Pre-Travel Information Both placards and certification labels are permanently at- tached to the trailer. See the “Weight Ratings Labels” in this section for location and detailed information. Understanding Tire Pressure & Load Limits Tire inflation pressure is the level of air in the tire that pro- vides it with load-carrying capacity and affects the overall performance of the vehicle.
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Pre-Travel Information 4. If the tire pressure is too low, note the difference be- tween the measured tire pressure and the correct tire pressure. These “missing” pounds of pressure are what you will need to add. 5. At a service station or using an air compressor, add the missing pounds of air pressure to each tire that is under-inflated.
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Pre-Travel Information Tire Tread The tire tread provides the gripping action and traction that prevent your vehicle from slipping or sliding, especially when the road is wet or icy. In general, tires are not safe and should be replaced when the tread is worn down to 1/16 of an inch. Tires have built-in tread-wear indicators that let you know when it is time to replace your tires.
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Pre-Travel Information Tire Labeling Federal law requires tire manufacturers to place standardized information on the sidewall of all tires. This information identi- fies and describes the fundamental characteristics of the tire and also provides a tire identification number for safety stan- dard certification and in case of a recall.
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Pre-Travel Information Maximum Permissible Inflation Pressure This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions. Speed Rating • Typically tires with a ST designation are speed re- stricted to 65 mph under normal inflation and load conditions.
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Pre-Travel Information Steps For Determining Correct Load Limit 1. Locate the statement “The weight of cargo should nev- er exceed XXX KG or XXX LBS” on your RV’s Cargo Carrying Capacity label. 2. This figure equals the available amount of cargo and luggage load capacity.
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Pre-Travel Information Lug nut torque at every wheel should be checked before de- parting on any trip, regardless of how short it may be. Always use a properly calibrated torque wrench to confirm proper torque. Do not allow under or over torque on any wheel. •...
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Pre-Travel Information 2. Place the second warning indicator 100 feet behind the RV in the center of the lane and toward approaching traffic. 3. Place the third warning indicator 100 feet in front of the RV in the center of the lane and away from the traffic approaching from behind.
Towing & Leveling TOWING & LEVELING Driving safety and protection against injury cannot be fully ensured; however, we recommend you pay special attention to the following: • The use of daytime running lights can increase other motorists' awareness of the RV to all traffic. •...
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Towing & Leveling RV DRIVING SCHOOLS & SEMINARS If you have any concerns about driving while towing a RV, consult an expert for specific RV driver education. There are private RV schools and some RV owner's organizations that offer driving seminars. The schedules and locations of the various RV driver education seminars and schools can be researched through RV-related publications and internet sites.
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Towing & Leveling BATTERY ISOLATOR (CUSTOMER SUPPLIED) You may want to consider the installation of a battery isolator on your tow vehicle as a convenience feature: • It receives current from the tow vehicle alternator and controls distribution of energy to both the RV auxiliary battery and the tow vehicle battery.
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Towing & Leveling Maintenance The connector plug may build up corrosion with extended use and should be cleaned periodically to insure good electrical contact. Make sure the connector plug is kept clean and pro- tected from road elements as you travel. BREAKAWAY SWITCH The breakaway switch is a crucial part of the RV braking sys- tem.
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You cannot cut back into the traffic lane as quickly due to the longer length of your tow vehicle/RV combination. Drive with caution to avoid situations that might require quick momentum changes. Even though your RV is equipped with brakes designed for GVWR, we suggest practicing stopping away from traffic until you become accustomed to your RV’s stopping distance.
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Towing & Leveling Be aware of road surface conditions. Slow down well in ad- vance of dips and bumps to reduce the jolting to your tow vehicle/RV combination. Drive over them slowly and let the trailer tires pass over them before accelerating. Cross railroad tracks slowly (always release your brakes before crossing).
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Towing & Leveling a site that is on the driver’s side, so you can see what the rear of the RV is doing. With the site on the passenger side, you would be backing into the site on your blind side, which is more difficult.
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Towing & Leveling LEVELING THE RV Now that you have parked your RV, you need to ensure it is level. Leveling is very important. A level RV is more comfort- able for sleeping and walking inside. The refrigerator is de- signed to operate when level for best performance due to the absorption system.
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Towing & Leveling MAINTENANCE 1. Retract the leveling legs to check the fluid level every month. The fluid should be within ¼” of the fill spout lip. 2. As needed, always fill the reservoir with the leveling legs in the fully retracted position. Filling the reservoir when the legs are extended will cause the reservoir to overflow into its compartment when the legs are re- tracted.
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Towing & Leveling OPTION 1 – USING THE “SLIDE ROOM 1” BUTTON 1. Make sure valve D is open. To open valve D, insert a 5/32” allen wrench into the manual override and rotate it 1.5 to 2 turns clockwise. 2.
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Towing & Leveling 5. When the leveling legs are in the desired position, close valves B and C by inserting a 5/32” allen wrench into the manual override and rotating it 1.5 to 2 turns counter-clockwise until snug. Do not over tighten! 6.
Electrical Systems ELECTRICAL SYSTEMS The RV electrical system is comprised of two independent electrical systems. One operates off of 12-volt DC power and the other off of 120-volt 60hz AC power. All installations have been made in compliance with industry standards applicable on the date of manufacture.
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Electrical Systems 120-VOLT CIRCUIT BREAKERS The 120-volt AC circuit breakers located inside the main load center protect all 120-volt wiring and components in the RV from circuit overloads and short circuits. Should a circuit overload or short circuit occur the circuit breaker protecting the affected circuit will “trip”...
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Electrical Systems CONNECTING THE POWER CORD Always test the external power source (i.e., the campsite pow- er receptacle or electrical box) with a ground monitor before connecting your power cord to it. If the ground monitor indi- cates 'reverse polarity' or an 'open ground' DO NOT connect the power cord.
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Electrical Systems INSPECTION AND MAINTENANCE If the 12-volt power converter is not working (auxiliary battery not being charged) check the reverse polarity fuses (dual 40- amp or 35-amp fuses) in the converter fuse panel. There are no customer serviceable parts inside the converter case and the manufacturer’s warranty will be void if the case has been removed.
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Electrical Systems An unintentional “trip” of a circuit breaker may occur if you overload the RV’s and/or campgrounds electrical system. The amperage rating of individual appliances can be calculated by dividing appliance wattage consumed (normally listed on the appliance) by nominal design voltage (120 for a 120-volt ap- pliance).
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Electrical Systems MINI-EMS OPERATION Press the SELECT button on the Mini-EMS control panel to choose the electrical service listed below: 30A (30-amp service) – the power control system (PCS) senses 0-volts AC between L1 and L2. The I/O Module has a current sensor which monitors the current on the neutral wire.
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Electrical Systems • The converter will supply interior 12-volt DC power when the power cord is plugged into campground power. The converter will also charge the RV battery in most situations. • The auxiliary battery powers many interior 12-volt components including the lighting fixtures, water pump, 12-volt motors, 12-volt appliances, etc.
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Electrical Systems If the furnace and refrigerator in the above example op- erated constantly, a 75 amp-hour battery would become fully discharged in 5 hours (75ah /15a = 5h). If the furnace and refrigerator are operating simultaneously, approximately (12.0 + 3.0) 15.0 amps per hour are used. This does not include any 12-volt lights, water pump or any other 12-volt component.
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Electrical Systems REPLACING A FUSE Before replacing a fuse, always turn off the electrical compo- nent(s) protected by it. 1. Disconnect the shore power cord. 2. Disconnect the RV auxiliary battery main negative bat- tery cable. 3. Remove the fuse panel cover to check fuses. 4.
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Electrical Systems stops flashing. The motor is now primed. To start the genera- tor, press and hold at the RUN position. Release the switch when the engine starts (the GEN RUN lamp will come on). To stop the generator, hold the switch at the STOP position until the engine stops.
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Electrical Systems open a window on the opposite side of the RV upwind of exhaust gases to provide cross ventilation. When parked, position the RV so that the wind will carry the exhaust away from the RV. • DO NOT open nearby windows, ventilators, or doors into the passenger compartment, especially those downwind, even part of the time.
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Electrical Systems • Do not turn on the main breakers until the generator is running smoothly and is warmed up. Check that there are no fuel or exhaust leaks. • Turn off the individual breakers, and set the main breakers ON. Turn on the individual circuit breakers one at a time to prevent generator overloading.
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Electrical Systems GENERATOR PREP Generator prep means the RV has the basic wiring neces- sary for installation of an aftermarket generator (customer supplied). RV generators are built in compliance with specific codes and standards. Your RV is not designed to use genera- tors other than those built specifically for RVs.
Plumbing Systems PLUMBING SYSTEMS There are two different water systems in your RV: the fresh water system and the waste water system. The fresh water system consists of the fresh water holding tank, fresh water connections, water pump, outside shower assembly (if so equipped), water heater, faucets, shower or tub, and water purification system (if so equipped).
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Plumbing Systems OPERATION Press only one switch at a time. As you push either the “FRESH”, “BLACK,” “GRAY” or “GRAY2” switch, one or more LED lights will illuminate indicating that holding tank content level. When pushing the “BATT” switch, the highest LED light illuminated indicates the estimated auxiliary battery condition.
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Plumbing Systems NORMAL USE (PRESSURIZED WATER SOURCE) Use this setting if you are at a campground or other facility where the RV can be hooked up to an external, pressurized water source. If needed, sanitize the water system (see Sani- tization) and change the water filter.
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Plumbing Systems WATER PRESSURE REGULATOR (CUSTOMER SUPPLIED) Excessive pressure from water supply systems may be en- countered in some parks, especially in mountain regions. Wa- ter pressure regulators can protect your system against such high pressure. Water pressure regulators are available for purchase from your RV dealer to protect the plumbing system against such high pressure.
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Plumbing Systems Odor from the hot water system Many water supplies contain sufficient amounts of sulfur to produce an odor, often called “sulfur water.” Sulfur water can be caused by a chemical action or by bacteria. Generally, sulfur water is not harmful, only unpleasant to smell. Refer to the water heater manufacturer owner manual for details on eliminating the odor from sulfur water.
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Plumbing Systems from a yellow burner may occur, indicating the possibility of carbon monoxide. You may also notice a lack of efficiency in heating the water because of incomplete combustion of the burner at these higher altitudes. Consult with a local propane company, your dealer or the water heater manufacturer for proper de-rating of the water heater.
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Plumbing Systems OUTSIDE SHOWER A handheld shower assembly with both hot and cold water is available for washing or rinsing outside the RV at the utility center. 1. Be sure the water heater is ON and had sufficient time to heat the water. 2.
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Plumbing Systems in mind when using the fresh water system. The used water will drain through the plumbing pipes into the grey water hold- ing tank. 1. Be sure the water heater is ON and had sufficient time to heat the water. 2.
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Plumbing Systems 7. Relieve the water pressure using the water heater P&T valve BEFORE removing the water heater drain plug. Otherwise, if there is any water pressure present the water will spray out of the opening when the drain plug is removed.
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Plumbing Systems WINTERIZING THE PLUMBING SYSTEM Preparing your RV for colder weather or storage is very im- portant for most states and Canada. Failure to prepare your RV may cause water supply lines and the water heater to freeze. No commodity or product should be added to the fresh water system to ensure freeze protection other than RV anti- freeze.
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Plumbing Systems weight. If you are dry camping and cannot immediately empty your holding tanks, reduce your vehicle speed until you reach a dumping station. Before using the RV or after dumping the grey and black water holding tanks, always add the proper amount of deodorant to the black water tank to prevent mal- odors and help break down holding tank contents (unless win- terizing).
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Plumbing Systems as needed. Never leave the black tank drain in the open posi- tion continuously when connected to the campground sewer system. EMPTYING THE BLACK & GREY WATER TANKS The two grey tank drain valves and one black tank drain valve (also called dump valves) are located in the docking station.
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Plumbing Systems 2. Open the water supply to full pressure to flush tank. 3. When the water runs clear from the sewer hose, shut off the water supply and disconnect the garden hose from the water source. Do not disconnect hose from flush inlet until water has drained from system.
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Plumbing Systems WASTE (GREY) HOLDING TANK PREPARATION No special preparation is required, however, placing a small quantity of chemicals into this tank, such as baking soda or an approved RV chemical, will reduce odors from food parti- cles in the system. CLEANING &...
MAINTENANCE Although both Grand Design RV and your selling dealer care- fully test for leakage, travel vibrations can loosen fittings. Have the propane system checked at all connections soon after the purchase of your RV, and after the initial filling of the propane tanks.
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Propane System Do not remove the following labels from your RV. If you smell propane within the RV quickly and carefully perform the pro- cedure listed: COMBO CARBON MONOXIDE/PROPANE ALARM Please refer to the “Occupant Safety” section for information on this alarm; also read and follow the component manufac- turer instructions supplied in your Owner Information Pack- age.
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Propane System Propane is a true gas compressed into a liquid form. As the fuel is released from the container, it changes to vapor which is then used for the operation of the appliances. Propane will not run through the appliances in the liquid state. Propane expands 1½...
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Propane System INSTALLING THE PROPANE CYLINDERS 1. Connect the 3/8” low-pressure hose to the outlet of the two-stage regulator. 2. Place the cylinder on the bracket in the recess com- partment or housing and secure them so the outlets of the cylinder valves are facing the “sidewalls” of the compartment or housing (opposite of each other).
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Propane System PROPANE REGULATOR The two-stage regulator has the only moving components in the propane system. Its sole function is to reduce the pres- sure from the propane containers to a safe and consistent low operating pressure. The first stage reduces the container pressure to 10-13 lbs.
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Propane System thread, which means that it is turned clockwise to remove, and counter-clockwise to tighten. The P.O.L. fitting has been designed to help restrict the flow of LP gas in the event of a regulator failure or hose malfunction. USING THE PROPANE SYSTEM After the RV is completely set up and you are prepared for camping enjoyment, use the following steps for propane oper-...
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Propane System Propane consumption depends on individual use of applianc- es and the length of time operated. Unless there is heavy use of hot water, the water heater consumption of propane is mini- mal. During cool temperature or high wind conditions, furnace consumption can be extremely high.
If you need further assistance, consult with your dealer the Grand Design RV Customer Service. The RV is equipped with a master/emergency fuel pump disconnect switch located on the exterior of the fuel station.
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Fuel System tank. The fuel tanks are specifically made for unleaded gaso- line; use clean, fresh unleaded fuel not containing a blend of more than 15% Ethanol. The fuel tank(s) are not compatible with any other fuel blends or diesel fuel. FUEL FILLER CAP Remove the fuel filler cap by slowly turning it counterclock- wise and waiting for any "hiss"...
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Fuel System Your RV is equipped with a fuel gauge to monitor the amount of fuel available for use. Press the rocker switch left to view the generator fuel tank information or press the rocker switch right to view the pump fuel tank information. Fuel gauge EXHAUST GAS FUMES Avoid inhaling exhaust gases as they contain carbon monox-...
Appliances APPLIANCES The following contains quick highlights of the RV applianc- es and equipment. It is written for original factory-installed equipment usage. If there have been modifications or re- placements made to your RV then these instructions may not apply (please contact the service center or technician who performed the modifications or substitutions if assistance is required).
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Appliances or the fire is fuel-fed, get clear of the RV and have the Fire Department handle the emergency. 3. Try to smother a flaming pan with a tight-fitting lid or cookie sheet. 4. Never pick up a flaming pan. Flaming grease outside of the pan can be extinguished with baking soda or a multipurpose dry chemical or foam-type fire extinguisher.
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Appliances WASHER/DRYER PREP If your RV was built with this feature, be aware the cabinet space provided is intended for the installation of an after- market RV-rated washer and dryer (customer supplied) only. Please consult your dealer or the appliance manufacturer for installation assistance.
Electronics ELECTRONICS AUDIO/VISUAL SYSTEM GUIDE The following is a basic overview of the audio/visual (A/V) electronics operation. The information in this section is written for original factory-installed equipment usage. If there have been modifications or replacements made to your electronics system then these instructions may not apply (please contact the service center or technician who performed the modifica- tions or substitutions if assistance is required).
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Electronics TV RECEPTION BASICS Television stations broadcast their signal "over the air" to sur- rounding areas. TV antennas are designed to receive the sig- nal broadcasted by the transmitters. Picture quality depends on the type of the antenna and the distance from the trans- mitter.
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Electronics WHEN USING ANALOG TV: 1. Disconnect the coaxial cable from the TV and connect it to the input of the converter box. Use an extra coaxial cable to connect the output of the converter box to the input of the TV. 2.
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Electronics CABLE/SATELLITE OUTLET There are RG-6 coax cable/satellite outlet connections locat- ed in the utility center (see diagram, next page). Please refer to the (customer supplied) satellite manufacturer’s instructions for setup, care and maintenance. All satellite connections are direct run (no splitters) RG6 cable from the utility center to the location noted on the connection plate.
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Electronics 3. Press the icon of the of system you wish to operate. Icon 4. Awnings – you can operate multiple awnings (if in- stalled). 5. Monitor Panel – including water tanks, water heater and water pump. 6. Slideouts –are labeled for easy use.
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Electronics 7. Generator – turns it on or off. 8. Leveling 9. Lighting – pressing the highlighted ON/OFF will turn lights on or off.
Heating & Cooling HEATING & COOLING The following contains quick highlights of the RV heating and cooling components. It is written for original factory-installed equipment usage. If there have been modifications or re- placements made to your RV then these instructions may not apply (please contact the service center or technician who performed the modifications or substitutions if assistance is required).
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Heating & Cooling THERMOSTAT Use the 12-volt DC thermostat in your RV to set the tempera- ture to your desired comfort setting. The four zones in your RV are as follows: Zone 1 – front bedroom air conditioner Zone 2 – main floor living area air conditioner Zone 3 –...
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The furnace requires both 12-volt power and propane gas for full operation. Make sure you have sufficient pow- er available before operating your furnace. If you have any questions contact your dealer or Grand Design RV Customer Service. A qualified RV technician should perform all furnace mainte- nance at least once a year (more often depending on furnace usage).
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Heating & Cooling Before retracting the slide-room, check to make sure the slide out awning is free of any debris (leaves, twigs, etc.), which can damage the awning or slide-room components. PARKING THE RV IN A SHADED AREA 1. Keep the blinds down or drapes shut. 2.
Slideout Systems SLIDEOUT SYSTEMS Slideouts are designed to provide additional living space during stationary camping. The mechanical components are hydraulically driven or gear driven. Make sure you have suf- ficient power available before operating your slideout sys- tem, then level and stabilize the RV. If the RV is not level, the slideout rooms and/or mechanisms may become damaged as leveling helps keep the RV square so the slideouts extend/ retract and seal correctly.
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If a slide out system stalls out before reaching end of stroke OR if the slide room does not close and seal tightly, call your dealer or Grand Design RV Customer Service for trouble shooting and/or repair assistance. MAINTENANCE...
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Slideout Systems ELECTRONIC MANUAL OVERRIDE (FOR BOARD REVISION C1 AND NEWER): 1. Locate the circuit board. 2. Press the “mode button” six (6) times quickly, press a seventh (7th) time and hold for approximately five (5) seconds. 3. The RED and GREEN LED lights will begin to flash, confirming the override mode.
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Slideout Systems 6. Re-engage motor to be ready for travel. 7. The room must be travel locked to keep room in place for road travel. TROUBLESHOOTING THE SCHWINTEK SLIDE SYSTEM Error codes During operation, when an error occurs the board will use the LED’s to indicate where the problem exists.
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Slideout Systems Only one (1) side moving The Schwintek slide system has a separate motor to oper- ate each side of the room. If only 1 side of the room moves a short distance (2 to 4 inches) and stops; •...
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Slideout Systems 3. Inspect and clean all pump unit electrical connections on the pump unit every 12 months. 4. Remove dirt and road debris from the slideout arms and cylinders as needed. 5. If slideouts are extended for lengthy periods, it is rec- ommended to spray exposed cylinder rods with a silicone lubricant every seven (7) days for protection.
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Slideout Systems HOW TO OVERRIDE AN INDIVIDUAL SLIDE ROOM The instructions on overriding the hydraulic slide rooms refer- ence the valves labeled in the photos to the right: Valve Description* Typical Location Open / close the slide room valve block (which houses Front facing comp.
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Slideout Systems HYDRAULIC SLIDEOUT SYSTEM MAINTENANCE It is recommended that when operating in harsh environments (road salt, ice buildup, etc.) the moving parts can be kept clean and can be washed with mild soap and water No grease or lubrication is necessary and in some situations may be det- rimental to the environment and long term dependability of the hydraulic slide system.
Garage GARAGE The ramp door gives you complete access to the RV cargo area. When lowered, the loading ramp allows you to easily load rolling cargo, bicycles, small motorcycles and small ve- hicles. Use caution when using the loading ramp/door area of your RV.
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Garage ALWAYS…exercise care when loading cargo/vehicles in the bed area to avoid damage to the bed mechanism. ALWAYS…properly secure loads in the bed area to avoid damage to the bed mechanism from shifting or falling loads TO LOWER THE TOP BUNK To lower the top bunk, press the Bed “Up”...
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Garage PATIO DECK Your unit may be equipped with a patio deck complete with folding rails. Caution should be taken not to exceed the ramp door weight capacities when in either the ramp position or the patio deck position, and to maintain even weight distribution. To set up the patio deck locate and secure the cables (one on each side of the ramp door) by lifting the ramp door up slight- ly, then securing each cable end to the ramp door by inserting...
Garage How to Set Up the Patio Rail Kit 1. Lower ramp door to level position. Patio rail kit will be closed inside the unit. 2. Unclasp the strap that is holding the patio rail kit together. This could be found any- where along the length of the patio rail kit.
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4. Slide the railing onto the keeper bases and lock in place. Railing foot Keeper base Locked railing foot 5. Close and secure the gate with the latch. Pull the pin out to move the latch up or down. Latch 6.
Garage Garage Retractable Rear Awning Set Up instructions 1. Locate the turning mechanism located on the rear awning. Insert and rotate the aw- ning handle to manually extend the awning. Stop when the awning is fully extended. 2. Locate both orange colored locking mechanisms at the top inside of the extended awning and pull both handles toward you to release the retractable legs.
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Garage 5. Adjust the awning height and slide the orange colored lock to secure each vertical awning leg in place. 6. Awning fully extended. Reverse steps listed above to retract the awning back into travel position.
Interior INTERIOR CLEANING THE INTERIOR Perform regular maintenance using the proper materials and procedures. Using the wrong cleaner may result in damage to the surfaces in your RV. Check the component manufacturer’s information for the recommended cleaning agent. If in doubt, check to see if the cleaner will cause damage by testing a small area out of sight or contact your dealer for assistance.
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Interior mended (solvents are not recommended as they may have an adverse reaction to the specific backing of your upholstery fabric). Blot up the spot, but do not rub it in or saturate the area. Use a professional furniture cleaning service for an overall cleaning.
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Interior CABINETRY & END TABLES To keep hardwood doors, cabinet fronts and hardwood tables looking like new regularly dust with a soft cloth dampened with a cleaning polish or mild detergent solution. Avoid using ammonia based products or silicone oils as they may cause damage if used over a long period of time.
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Interior FLOORING Always test a cleaning agent in an inconspicuous area for colorfastness. CARPET Vacuum regularly with a vacuum cleaner with a revolving brush or beater bar. Be sure the vacuum does not have teeth, combs or rough edges as they may damage the carpet. It is important to remove loose soil and debris while it is on the surface.
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Interior FIBERGLASS SHOWER WALLS Use a mild detergent soap and warm water to clean the fiberglass shower wall. DO NOT use gritty or abrasive particle soaps or scouring compound to clean the fiberglass. SINK & SHOWER FIXTURES Use mild dish soap and water to clean these fixtures. Do not use harsh chemicals or sprays.
Exterior EXTERIOR CLEANING THE EXTERIOR To protect your RV's exterior finish, wash it often and thor- oughly. Regular cleaning and waxing will help protect the exterior. If chalking occurs, wash and try to wax a small area to see if the luster returns. If the exterior becomes scratched, nicked or cracked have your dealer inspect the RV.
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Exterior We recommend that you do not take your RV through auto- matic car washes. Extreme caution should be used if utilizing any type of pressure sprayer around all attachments, doors, windows, appliance vents, etc. Avoid forcing water inside the RV, which could possibly damage component parts.
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Exterior dried, polish the RV with a dry, soft cloth. Do not wax your RV in direct sunlight. Wax it after the surfaces have cooled. Do not apply wax to any area having a flat black finish as it can cause discoloration.
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Exterior While you are cleaning the exterior roof, also inspect the roof vents (including sealants) for cracks and keep them clean. Inspect the refrigerator and holding tank vents for blockages from bird nests, spider webs, leaves, etc. Water heater, furnace and refrigerator exterior doors need to be kept clean and free of obstructions (i.e., insect nests, mud daubers, etc.) while the appliances (if so equipped) are in use.
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Exterior times. Varying environmental factors affect the pliability and adhesiveness of sealants. You or your dealer must: • Inspect all sealants, a minimum of every six months. Make sure to check the roof and all four sides of the RV including all moldings, doors, vents and exterior attachments.
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Exterior PRIOR TO STORAGE If storing for the winter, be sure the RV is winterized. • Check your roof and other surfaces to ensure there is no damage and potential leakage that might otherwise go unnoticed until it is too late. •...
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Exterior SUGGESTED MAINTENANCE CHECKLIST This list is a quick reference sheet for suggested areas of reg- ular maintenance. Review all manufacturer’s operators manu- als supplied with your RV to perform these listed maintenance items. PRIOR TO FIRST TRIP • Inspect and reseal as needed. •...
Exterior REQUIRED MAINTENANCE SCHEDULE Procedure to be Performed: Maintenance schedules are minimum requirements, Extended Maintenance Item use, extreme temperatures, high humidity or oth- er extreme conditions will require more frequent maintenance. Appliances Check settings and adjustments per manufactur- er's guide Make sure burner tubes / vents are clean / unobstructed Clean and sanitize...
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Exterior REQUIRED MAINTENANCE SCHEDULE Maintenance Item Safety Equipment Check operation of detectors - remove and re- place every 6 months Test and check fire extinguisher for proper charge Test and confirm egress (exit) windows function properly Slide Rooms Check slide roof for debris - clear if necessary Check and clean all seals Wheels &...
Basic Troubleshooting BASIC TROUBLESHOOTING ELECTRICAL POWER No AC power to RV • Check circuit breakers at power center. The 120-volt circuit breaker may be off or tripped. • Have a dealer check that there is power to the shore- line receptacle. FURNACE Furnace does not ignite and/or cycles frequently •...
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Basic Troubleshooting Generator starts, but lacks electrical power • Breaker switches may be off or tripped at generator. Reset breaker if necessary. • Breaker may be off or tripped inside power center. Reset main breaker if necessary. Generator makes clicking sound when trying to start •...
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Basic Troubleshooting Holding tank lights deliver false readings (i.e. 1/3 or 2/3 indication) • Verify tank is empty. • Debris may be built up across probes. Clean and flush tank using four parts vinegar mixed to two parts water. Propane indicator display indicates E or F all the time •...
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Basic Troubleshooting PROPANE GAS Smell gas in or around unit • Propane tanks may be overfilled. Follow these instructions: ◦ Extinguish any open flames, pilot lights and all smoking material. ◦ Do not touch electrical switches. ◦ Shut off gas supply at the tank valve or gas supply connection.
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Basic Troubleshooting Heavy frost build up on the evaporator fins • Defrost the freezer and refrigerator. • Have the refrigerator checked by your dealer or a qualified RV technician. ROOF AIR CONDITIONER Will not operate • Make sure unit is turned on. •...
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Basic Troubleshooting SLIDE-OUT Room move in and out very slowly, binds or squeaks • Lubricate the slide-out tubes and rollers with light spray lube. Water is getting in at the bottom corners of the room • Verify exterior seals are against the room at the top corners and not turned in when the room is out (hori- zontal seal overlaps vertical).
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Basic Troubleshooting • Antenna not pointed in direction of sending station. Point antenna in proper direction. • Cut or torn cable. Have your dealer or qualified RV technician replace bad cable where needed at TV and antenna. Elevation handle turns, but antenna does not raise or lower •...
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Basic Troubleshooting There is an odor that smells like rotten eggs • If your fresh water source has a rotten egg odor, you will need to find another source of fresh water before flushing or refilling the entire RV water storage sys- tem.
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Basic Troubleshooting ◦ Upon completion of the steps above, close the drain plug as well as the relief valve. Refill with fresh water, circulate and rinse. ◦ If you use your vehicle frequently or for long periods of time, flushing the water heater several times a year will prolong the life of the water heater storage tank.
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Basic Troubleshooting WATER SYSTEM Wet areas near water connections, pump runs while the faucets are closed, and no other fresh water fixtures are being used • There is a possible leak, • Close all low point water drains and tank drains. •...
Glossary GLOSSARY OF TERMS AC ELECTRICITY – Alternating current also known as shoreline power. For purposes of this manual, it refers to 120-volt AC (abbreviated 120 VAC). AMP – Short for ampere, the electric current unit of measure. RV sites with electric hookup will specify the maximum amps supported, which generally come in units of 20, 30, or 50 amps.
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Glossary CAMBER (WHEEL ALIGNMENT) – The number of degrees each wheel is off of vertical. Looking from the front, tops of wheels farther apart than bottoms means "positive camber". As the load pushes the front end down, or the springs get weak, camber would go from posi- tive to none to negative (bottoms of wheels farther apart than tops).
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12-volt DC (abbreviated 12 VDC). DEALER – For purposes of this manual, this refers to the independent dealer authorized to sell and/or service your camper by Grand Design RV. This term will be used in this context unless specified otherwise.
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Glossary DUMP VALVE – Another name for the T-handle valve used to release and drain the black tank (sewage) and gray tank (waste). EGRESS WINDOW – The formal name for the emergency escape window. Egress windows are identified by their labeling. FIFTH WHEEL (FW) –...
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Glossary GROSS AXLE WEIGHT RATING (GAWR) – The MAXIMUM ALLOWABLE WEIGHT each axle assembly is designed to carry, as measured at the tires, therefore including the weight of the axle assembly itself. GAWR is established by considering the rating of each of its components (tires, wheels, springs, axle), and rating the axle on its weakest link.
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Glossary HONEY WAGON – Euphemism for the sewage pumping truck. Honey wagons are used to empty RV holding tanks in places where full hookups and dump stations are not available. HOOKUPS – The ability of connecting to a campground's facilities. The major types of hook- ups are electrical, water and sewer.
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Glossary LANDING GEARS – See Leveling Jack. LEVELING – Positioning the RV in camp so it will be level, using ramps (also called levelers) placed under the wheels, built-in scissors jacks, or power leveling jacks. LEVELING JACK – A jack lowered from the underside of trailers and motor homes for the purpose of leveling the vehicle.
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Glossary PERIODICALLY – At least once each camping season, more often if you camp frequently. PILOT – A pilot is a small standby flame that is used to light the main burner of a propane fired appliance when the thermostat calls for heat. Pilots can be used in furnaces, water heaters, refrigerators, ovens and stove tops.
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Glossary SELF CONTAINED – RV which needs no external electrical, drain or water hookup. Thus, it can park overnight anywhere. Of course, self-contained units can also hook up to facilities when at campgrounds. SANITIZATION – Refers to the camper’s fresh water system that has been sanitized with chlorine bleach before use or after storage.
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Glossary TONGUE WEIGHT, TONGUE LOAD, VERTICAL LOAD (TWR/TLR/VLR) – Tongue Weight, Tongue Load, Vertical Load Rating Different terms for the MAXIMUM VERTICAL LOAD that can be carried by the hitch UNLOADED. TRAILER BRAKES – Brakes that are built into the trailer axle systems and are activated ei- ther by electric impulse or by a surge mechanism.
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Glossary WEIGHT & LOAD – These terms are generally used interchangeably. For the purposes of understanding RV applications, vehicles have WEIGHT, which impart LOADS to tires, axles and hitches. Scale measurements taken when weighing are LOADS carried by the tires. These measured loads are used to calculate Gross Vehicle Weight (GVW), Gross Axle Weight (GAW), Gross Combination Weight (GCW), and hitch loads.
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Questions and answers
Our 2022 Grand Design Momentum 381M hot water heater is getting hot with both electric and propane. Hot water comes out the drain and the water heater mounted relief valve but not out of any of the faucets. Was working fine yesterday. I understand there is a mixing valve that may be faulty or need adjustment. Where would that valve be located? Thank You
On g 21class toy hauler does blue light on panel mean tanks are full?