Maytag Amana ACVM97 Series Service Instructions Manual

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Service Instructions

34.5" Chassis ACVM97*BA/AMVM97*BA / GCVM97*BA/GMVM97*BA

Pride and workmanship go into every product to provide

our customers with quality products. It is possible,

however, that during its lifetime a product may require

service. Products should be serviced only by a qualified

service technician who is familiar with the safety

procedures required in the repair and who is equipped with

the proper tools, parts, testing instruments and the

appropriate service manual. REVIEW ALL SERVICE

INFORMATION IN THE APPROPRIATE SERVICE

MANUAL BEFORE BEGINNING REPAIRS.

NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL

(

, "

REPAIR

HEREINAFTER

SERVICE

MANUAL SHOULD SERVICE THE EQUIPMENT

BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM

IMPROPER SERVICE OR SERVICE PROCEDURES

ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY

. I

RESULT

N ADDITION

IN JURISDICTIONS THAT REQUIRE ONE OR MORE

LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL

LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT

INSTALLATION

ADJUSTMENT

SERVICING OR REPAIR OF THE EQUIPMENT

SPECIFIED IN THIS MANUAL

OR ATTEMPTING TO INSTALL

REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER

TRAINING MAY RESULT IN PRODUCT DAMAGE

INJURY OR DEATH

PROP 65 WARNING

FOR CALIFORNIA CONSUMERS

Cancer and Reproductive Harm

www.P65Warnings.ca.gov

This manual is to be used by qualified, professionally trained HVAC tech-

nicians only. Goodman does not assume any responsibility for property

damage or personal injury due to improper service procedures or services

performed by an unqualified person.

The material in this manual does not supercede manufacturer's

installation and operation instructions

Modulating Gas Furnaces BA revision & above

ADJUST

THE EQUIPMENT SPECIFIED IN THIS

. T

HE MANUFACTURER WILL NOT

. I

F YOU SERVICE THIS UNIT

. I

MPROPER

ADJUST

PROPERTY DAMAGE

IMPORTANT INFORMATION......................................2 - 5

PRODUCT IDENTIFICATION...........................................6

SYSTEM OPERATION ...............................................7 - 47

SCHEDULED MAINTENANCE...................................48 - 53

SERVICING.................................................................54 - 68

CHECKING VOLTAGE .................................................55

CHECKING WIRING................................................... 55

CHECKING THERMOSTAT, WIRING......................... 55

CHECKING TRANSFORMER AND CONTROL CIRCUIT ...56

CHECKING DUCT STATIC......................................... 59

CHECKING TEMPERATURE RISE........................... 59

SERVICE OR

CHECKING PRIMARY LIMIT CONTROL.................. 60

CHECKING AUXILIARY LIMIT CONTROL................ 61

CHECKING FLAME ROLLOUT CONTROL.................61

YOU

INDUCED DRAFT BLOWER MOTOR........................62

CHECKING MODULATING GAS VALVE....................62

ONLY

CHECKING MAIN BURNERS........................................63

CHECKING ORIFICES...................................................63

SERVICE OR

CHECKING GAS PRESSURE...................................63

PERSONAL

CHECKING HOT SURFACE........................................65

CHECKING FOR FLASHBACK....................................66

CHECKING PRESSURE CONTROL.............................66

HIGH ALTITUDE APPLICATION (USA)......................66

CHECKING FOR DELAYED IGNITION..................... 67

CHECKING INTEGRATED IGNITION CONTROL

BOARDS........................................................................67

0140M00517-A

MEMORY CHIPS (COMFORTBRIDGE™

FURNACE ONLY)...........................................................68

CHECKING FLAME SENSOR.................................... 68

TROUBLESHOOTING..............................................69 - 79

WIRING DIAGRAM..........................................................80

ACCESSORIES..........................................................81 - 84

RS6612015r7

February 2021

Table of Contents

Summary of Contents for Maytag Amana ACVM97 Series

Page 1: Table Of Contents
The material in this manual does not supercede manufacturer's installation and operation instructions ACCESSORIES............81 - 84 RS6612015r7 February 2021 is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved. ® Copyright © 2017 - 2021 Goodman Company, L.P.
Page 2: Important Information
IMPORTANT INFORMATION RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS WARNING O PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH, DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE. WARNING HIGH VOLTAGE ISCONNECT...
Page 3 IMPORTANT INFORMATION FOR YOUR SAFETY READ BEFORE OPERATING WARNING: Improper If you do not follow these instructions exactly, alteration, service or a fire or explosion may result causing property maintenance can damage, personal injury or loss of life. cause injury or property damage.
Page 4 IMPORTANT INFORMATION CONSIGNES DE SECURITE - LIRE INSTRUCTIONS DE SERVICE AVANT D'ALLUMER L'APPAREIL 1. UN INSTANT! Lisez d'abord les consignes de securite ci-dessus. 2. Reglez le thermostat a son point le plus bas. AVERTISSEMENT: Le non-respect des instructions qui suivent peut 3.
Page 5 IMPORTANT INFORMATION CO can cause serious illness including permanent brain damage or death. B10259-216 Advertencia especial para la instalación de calentadores ó manejadoras de aire en áreas cerradas como estacionamientos ó cuartos de servicio. To locate an authorized servicer, please consult your tele- phone book or the dealer from whom you purchased this product.
Page 6: Product Identification
PRODUCT IDENTIFICATION NOMENCLATURE 7,8,9 13,14 Brand Engineering A - Amana® Brand Major / Minor Revisions * Not used for inventory control. Conﬁgura�on N - Low NOx Cabinet Width Motor B - 17½” C - 21" V - Variable Speed ECM/ComfortBridge D - 24½"...
Page 7: System Operation
SYSTEM OPERATION SAFETY WARNING Please adhere to the following warnings and cautions when in- stalling, adjusting, altering, servicing, or operating the furnace. O PREVENT PROPERTY DAMAGE PERSONAL INJURY OR DEATH DUE TO FIRE DO NOT INSTALL THIS FURNACE IN A MOBILE HOME TRAILER RECREATIONAL VEHICLE WARNING...
Page 8 SYSTEM OPERATION Gas furnaces manufactured on or after May 1, 2017 are not National Fire Protection Association permitted to be used in Canada for heating of buildings or 1 Batterymarch Park structures under construction. Quincy, MA 02169-7471 In the U.S.A. this furnace may be used as a construction site CSA International heater ONLY if all of the following conditions are met: 8501 East Pleasant Valley...
Page 9 SYSTEM OPERATION • Locate the furnace so condensate flows downwards to cooling coil unit. Premature heat exchanger failure will the drain. Do not locate the furnace or its condensate result if the cooling unit is placed ahead of the furnace. drainage system in any area subject to below freezing For vertical (upflow or downflow) applications, the min- temperatures without proper freeze protection.
Page 10 SYSTEM OPERATION EXISTING FURNACE REMOVAL *CVM97 MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS NOTE: When an existing furnace is removed from a venting (INCHES) system serving other appliances, the venting system may be POSITION* SIDES REAR FRONT BOTTOM FLUE too large to properly vent the remaining attached appliances. Counterflow 0"...
Page 11 SYSTEM OPERATION THERMOSTAT LOCATION pan. For horizontal upflow furnaces, return air ductwork must be attached to the basepan. For both upright or horizontal WARNING counterflow furnaces, return ductwork must be attached to the basepan (top end of the blower compartment). NOTE: O AVOID PROPERTY DAMAGE PERSONAL INJURY OR DEATH Ductwork must never be attached to the back of the furnace.
Page 12 SYSTEM OPERATION DRAIN TRAP AND LINES In horizontal applications the condensate drain trap is secured to the furnace side panel, suspending it below the furnace. A minimum clearance of 5 ½” below the furnace must be provid- ed for the drain trap. Additionally, the appropriate downward piping slope must be maintained from the drain trap to the drain location.
Page 13 SYSTEM OPERATION For furnaces being converted to LP gas, it is strongly recom- WARNING mended that a LPLP03 kit also be installed. The use of this kit will prevent the furnace from firing when the LP gas supply PON COMPLETION OF THE FURNACE INSTALLATION CAREFULLY pressure is too low to support proper combustion.
Page 14 SYSTEM OPERATION All 90° elbows must be medium radius (1/4 bend DWV) or long radius (Long sweep 1/4 bend DWV) types conforming to ASTM D3311. A medium radius (1/4 bend DWV) elbow NO TRANSITION ON measures 3 1/16” minimum from the plane of one opening to HORIZONTAL PLANE, THIS CREATES A the center line of the other opening for 2”...
Page 15 SYSTEM OPERATION The following bullets and diagram describe the restrictions The safe operation, as defined by ULC S636, of the vent concerning the appropriate location of vent/flue pipe and system is based on following these installation instructions, combustion air intake pipe (when applicable) terminations. the vent system manufacturer’s installation instructions, and Refer to Non-Direct Vent (Single Pipe) Piping and Direct Vent proper use of primer and cement.
Page 16 SYSTEM OPERATION VENT-DRAIN Figure 8 NOTE: For non-direct vent installations, a minimum of one Figure 10 90° elbow should be installed on the combustion air intake coupling to guard against inadvertent blockage. COMBUSTION AIR PIPE Direct Vent Installations WARNING DGES OF SHEET METAL HOLES MAY BE SHARP SE GLOVES AS A PRECAUTION WHEN REMOVING HOLE PLUGS On upflow units secure the combustion air intake pipe to...
Page 17 SYSTEM OPERATION NON-DIRECT VENT INSTALLATIONS installation using down – venting, an alternate combustion air opening can be used. A locating dimple is located on A minimum of one 90° elbow should be installed on the the right side of the furnace cabinet. The locating dimple combustion air intake “coupling”...
Page 18 SYSTEM OPERATION 6. One 90° elbow should be secured to the combustion air intake connection. NOTE: For installations at or above 7,000 feet altitude, use 3” 6” MAX venting. 4” MIN VENT / FLUE PIPE TERMINATIONS 12" MIN. 90º OR 45° ELBOW VENT/FLUE TEE ( OPTIONAL)
Page 19 SYSTEM OPERATION DOWN VENTING UPFLOW MODEL FURNACES ONLY Use alternate vent & combination air locations 6’ Max. Vent Pipe Floor Combustion Air Pipe Field Supplied Drain Tee on Vent Pipe 1/4” per foot min. slope to furnace Condensate trapped to prevent flue gas from escaping and routed to field supplied condensate disposal All piping and fittings must be joined per material manufacturers specifications...
Page 20 SYSTEM OPERATION Side Wall Vent Kit 90° ELBOWS This kit is to be used with 2” or 3” direct vent systems. The vent kit must terminate outside the structure and may be installed with the intake and exhaust pipes located side-by-side or with one pipe above the other.
Page 21 SYSTEM OPERATION Follow the bullets listed below when installing the drain UPFLOW MODEL INSTALLED VERTICALLY system. Refer to the following sections for specific details The trap and factory installed hoses remain as shipped. The concerning furnace drain trap installation and drain hose furnace drain may exit either the right or left side of the furnace hook ups.
Page 22 SYSTEM OPERATION 1. Remove the clamps from both ends of the drain hoses. 2. Remove the two screws holding the drain trap to the blower deck. 3. Remove the trap and two hoses from the blower deck 4. Remove the two plugs from the right side of the cabinet and install them in the blower deck.
Page 23 SYSTEM OPERATION 5. (Draining the Vent Elbow) Locate hose #6. Measuring 1. (Draining the RF000142 Coupling) Locate hose #2 (fac- from the non-grommet end; cut off and discard 1 ½” for tory installed). Cut off and discard the 45°radius end. a “D”...
Page 24 SYSTEM OPERATION COUNTERFLOW MODEL INSTALLED VERTICALLY The furnace drain may exit the right or left side of the furnace cabinet (left side preferred) Trap and factory installed hoses remain as shipped if the drain will exit the left side of the cabinet.
Page 25 SYSTEM OPERATION 16. Using the two sheet metal screws provided in the cab- Hose #4 inet, secure the trap to the furnace. 17. Refer to Field Supplied Drain section for instructions on field supplied / installed drain on outlet of furnace trap. ELECTRICAL CONNECTIONS WARNING HIGH VOLTAGE !
Page 26 SYSTEM OPERATION Connect hot, neutral, and ground wires as shown in the wiring 1. Measure resistance between the neutral (white) con- diagram located on the unit’s blower door. For direct vent nection and one of the burners. applications, the cabinet opening to the junction box must be 2.
Page 27 SYSTEM OPERATION NOTE: If a heat pump is installed it will be treated 1. Stage Up Percent (7 segment menu SUP): This is as a priority heat for a W call. To test gas heat only, a value that determines how far past the target without waiting for the system to stage between the runtime the system should continue running the heat pump and furnace, disconnect communications...
Page 28 SYSTEM OPERATION The system will automatically make adjustments in an attempt 3 Ton Models 1400 CFM to satisfy the thermostat as close to this target runtime as pos- 4 Ton Models 1760 CFM sible. After a power cycle or mode change (cooling to heating 5 Ton Models 2200 CFM or heating to cooling) the system will run full capacity for the Setup Furnace Airflow: Adjust the Gas Heating Airflow...
Page 29 SYSTEM OPERATION Heating CFM MODEL & TEMP RISE RANGE *CVM970603BNB* *CVM970803BNB* *CVM970804CNB* *CVM971005CNB* (MID RISE) 35-65 (50) 35-65 (50) 35-65 (50) 35-65 (50) RISE RISE RISE RISE RECOMMENDED CFM FOR 100% FIRING RATE & EXPECTED 1080 1400 1430 1800 TEMPERATURE RISE LOWEST RECOMMENDED CFM FOR 100% FIRING RATE &...
Page 30 SYSTEM OPERATION Thermostat connections to the control board are R, C, G, Internal logic will control staging of all multi stage equipment (2 W, Y & Dehum. Provided the thermostat does not require a stage AC/HP units and Inverter AC/HP units). The thermostat common wire as few as two thermostat wires may be used is only required to provide a single stage heat / cool call and for heat only (R and W) or cool only (R and Y) systems.
Page 31 SYSTEM OPERATION When using the furnace with a single stage non-communi- INDOOR BOARD TERMINAL cating air conditioner or heat pump use the wiring methods CONNECTIONS shown. When using a single stage air conditioner, the thermo- stat must be setup for single stage heating and single stage cooling mode.
Page 32 SYSTEM OPERATION Dehumidification Control Options Key Mitigations: Full featured TS (dehum & overcool) Connect G and dehum wire correctly Dehumidistat Dehumidification Control Options Dry Environment Install any 24VAC Thermostat has a Dehum or thermostat on the Configurable terminal with market - Use Y, W, G Dehum option signals Install Dehumidistat in...
Page 33 SYSTEM OPERATION FOSSIL FUEL APPLICATIONS The accessory load specifications are as follows: This furnace can be used in conjunction with a heat pump in a fossil fuel application. A fossil fuel application refers to a 1.0 Amp maximum at 120 VAC combined gas furnace and heat pump installation which uses The furnace integrated control module is equipped with an outdoor temperature sensor to determine when to run the...
Page 34 SYSTEM OPERATION CoolCloudHVAC Phone Application – General Information This furnace is Bluetooth ready and functions with a custom phone application designed to improve the Examples of Cool Cloud HVAC Phone Application setup / diagnostic experience of the installing contractor. Screens Users can see specific model information, review active NOTE: Actual screen may look different based on the diagnostic error codes, observe system status during...
Page 35 SYSTEM OPERATION If the phone remains within Bluetooth range during the or previously-selected option. Pressing the left or right three steps, the user will be notified when each step has button will display the next available option. When the been completed and informed about what to do next. If next adjustable or selectable option is displayed, the the user is not within Bluetooth range during this process furnace control will flash the option with ½...
Page 36 SYSTEM OPERATION    LEFT CENTER RIGHT Press then Release RIGHT LEFT CENTER 1. Press and Release the Center Button again. The 45 being displayed will stop flashing. To then Press then Release complete the selection process and make 45 the 2.
Page 37 SYSTEM OPERATION Constant Fan Speed Menu CAUTION This menu allows for adjustment of the multiplier for O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE constant fan operation in 10% increments. Each furnace INLET GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT has a “Maximum CFM”...
Page 38 SYSTEM OPERATION Gas Piping Connections PROPANE GAS CONVERSION WARNING Natural Gas Capacity of Pipe In Cubic Feet of Gas Per Hour (CFH) OSSIBLE PROPERTY DAMAGE PERSONAL INJURY OR DEATH MAY Nominal Black Pipe Size Length of OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED ”...
Page 39 SYSTEM OPERATION • The gas piping may enter the left or right side of the furnace Use ground joint unions. cabinet. The installer must supply rigid pipe long enough to • Install a drip leg to trap dirt and moisture before it can reach the outside of the cabinet to seal the grommet cabinet enter the gas valve.
Page 40 SYSTEM OPERATION Disconnect this unit and shutoff valve from the gas supply Manual Shut Off Valve (upstream from piping system before pressure testing the supply piping sys- Alternate ground joint pipe union) Union tem with pressures in excess of ½ psig (3.48 kPa). Location Isolate this unit from the gas supply piping system by closing Drip Leg...
Page 41 SYSTEM OPERATION Complete information regarding tank sizing for vaporiza tion, To determine total external duct static pressure, proceed as recommended regulator settings, and pipe sizing is avail- follows: able from most regulator manufacturers and propane gas 1. With clean filters in the furnace, use a draft gauge suppliers.
Page 42 SYSTEM OPERATION CUT USING TIN SNIPS PRESS OUT BY HAND CUT FOUR CORNERS AFTER REMOVING SHEET METAL SCRIBE LINES OUTLINING DUCT FLANGES . Duct Flange Cut Outs Figure 43 Filters must be used with this furnace. Discuss filter mainte- Checking Static Pressure nance with the building owner.
Page 43 SYSTEM OPERATION HORIZONTAL INSTALLATIONS Model Minimum Recommended Filter Size^ Filters must be installed in either the central return register or in the return air duct work. *MVC960403BN* 1 - 16 X 25 Side or Bottom *MVC960603BN* 1 - 16 X 25 Side or Bottom STARTUP PROCEDURE &...
Page 44 SYSTEM OPERATION 2. Remove the burner compartment door and move the 1. Turn OFF gas to furnace at the manual gas shutoff valve furnace gas valve manual control to the OFF position. external to the furnace. 3. Close the manual gas shutoff valve external to the furnace. 2.
Page 45 SYSTEM OPERATION 9. Turn off all electrical power and gas supply to the system. NOTE: When converting from natural gas to L.P. consult your distributor for proper conversion kit. 10. Remove the manometer hose and adapter from gas valve. Manifold Gas Pressure 11.
Page 46 SYSTEM OPERATION • Furnace is now operating on the specified stage deter- DIAGNOSTICS mined by the internal control algorithm. Accessing the furnace’s diagnostic menu provides access to the last six faults detected by the furnace. Faults are stored • Furnace runs, integrated control module monitors safety most recent to least recent, Any consecutively repeated fault is circuits continuously.
Page 47 SYSTEM OPERATION 2. Firmly touch a clean, unpainted, metal surface of the fur- ROLLOUT LIMIT nace away from the control. Any tools held in a person’s The rollout limit controls are mounted on the burner/manifold hand during grounding will be discharged. assembly and monitor the burner flame.
Page 48: Scheduled Maintenance
SCHEDULED MAINTENANCE To remove filters from an external filter rack in an upright MAINTENANCE upflow installation, follow the directions provided with external filter rack kit. ANNUAL INSPECTION Horizontal Unit Filter Removal WARNING Filters in horizontal installations are located in the cen- tral return register or the ductwork near the furnace.
Page 49 SCHEDULED MAINTENANCE FLAME SENSOR (QUALIFIED SERVICER ONLY) WARNING Under some conditions, the fuel or air supply can cre- ate a nearly invisible coating on the flame sensor. This HIGH VOLTAGE coating acts as an insulator causing a drop in the flame ISCONNECT POWER BEFORE SERVICING OR sense signal.
Page 50 SCHEDULED MAINTENANCE AIR FILTER FILTER REMOVAL PROCEDURE MEDIA AIR FILTER OR ELECTRONIC AIR CLEANER WARNING REMOVAL Follow the manufacturer’s directions for service. EVER OPERATE FURNACE WIHTOUT A FILTER INSTALLED AS DUST AND LINT WILL BUILD UP ON INTERNAL PARTS RESULTING IN LOSS OF EFFICIENCY, EQUIPMENT DAMAMGE, AND POSSIBLE FIRE.
Page 51 SCHEDULED MAINTENANCE BURNERS To find the BTU input, multiply the number of cubic feet of gas consumed per hour by the heating value of the gas being used. (The calorific value of the gas being used is found by WARNING contacting your local utility.) HIGH VOLTAGE EXAMPLE: It is found by the gas meter, that it takes forty...
Page 52 SCHEDULED MAINTENANCE CLOCKING A GAS METER 1. Turn off all gas appliances in the home. 2. Turn on the furnace. Ensure the furnace is operating at 100% firing rate on 2 stage and modulating furnace product. 3. Once heating cycle is at a steady state (typically 15 minutes of operation), use a stopwatch to time how long it takes the smallest unit of measure dial on the gas meter to make a full revolution.
Page 53 SCHEDULED MAINTENANCE 5. Use this formula to verify the Cubic Feet per Hour (CFH) input determined in step 4 is correct: (3600 x Gas Meter Dial Size) / Time (seconds) = Cubic Feet per Hour (CFH) 3600 is used as there are 60 seconds in a minute and 60 minutes in an hour.
Page 54: Servicing
SERVICING Some of the electronic boards being used today, with flame INCOMING POWER rectification, will not function properly and/or at all without     polarization of incoming power. Some also require phasing between the primary and secondary sides of step-down transformers.
Page 55: Checking Voltage
SERVICING CHECKING VOLTAGE CHECKING THERMOSTAT, WIRING WARNING THERMOSTAT AND WIRING HIGH VOLTAGE WARNING ISCONNECT POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING. ULTIPLE POWER ISCONNECT POWER BEFORE SERVICING. SOURCES MAY BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 1.
Page 56: Checking Transformer And Control Circuit
SERVICING CHECKING TRANSFORMER AND CONTROL CIRCUIT ECM Control Connections A step-down transformer 120 volt primary to 24 volt secondary, ECM control connections are made through the integrated 40 VA (Heating and Cooling Models) supplies ample capacity ignition control. No other control connections are needed. of power for either operation.
Page 57 SERVICING 7. Check housing for cracks and/or corrosion. Repair or Power Green Motor replace as needed. Indication(s) Button Action 8. Check motor mounting bracket. Ensure mounting bracket Confirm 24VAC to is tightly secured to the housing. Ensure bracket is not UltraCheck-EZ tool.
Page 58 SERVICING MOTOR CONTROL/END BELL CHECKS AC Line Hot Connection HIGH VOLTAGE! AC Line Neutral Connection Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may Lines 1 and 2 will be connected cause property damage, personal injury for 120VAC Power Connector or death.
Page 59: Checking Duct Static
SERVICING To determine proper air movement, proceed as follows: 1. With clean filters in the furnace, use a draft gauge (inclined manometer) to measure the static pressure of the return duct at the inlet of the furnace. (Negative Pressure) 2. Measure the static pressure of the supply duct. (Positive Pressure) 3.
Page 60: Checking Primary Limit Control
SERVICING 1. Operate furnace with burners firing for approximately ten PRIMARY LIMIT minutes. Check BTU input to furnace - do not exceed CONTROL input rating stamped on rating plate. Ensure all registers are open and all duct dampers are in their final (fully or partially open) position.
Page 61: Checking Auxiliary Limit Control
SERVICING MANUAL OR AUTOMATIC RESET AUXILIARY LIMITS LOCATED IN BLOWER SIDE  WARNING HIGH VOLTAGE ISCONNECT POWER BEFORE SERVICING OR INSTALLING THIS UNIT. ULTIPLE POWER SOURCES MAY BE PRESENT. AILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 1.
Page 62: Induced Draft Blower Motor
SERVICING 1. Remove burner compartment door to gain access to FLAME the induced draft blower motor. ROLLOUT 2. Disconnect the motor wire leads from its connection SWITCHES point at the induced draft motor. 3. Using a ohmmeter, test for continuity between each of the motor leads.
Page 63: Checking Main Burners
SERVICING Orifices should be treated with care in order to prevent dam- WARNING age. They should be removed and installed with a box-end wrench in order to prevent distortion. In no instance should ISCONNECT POWER BEFORE SERVICING an orifice be peened over and re-drilled. This will change the angle or deflection of the vacuum effect or entraining of primary air, which will make it difficult to adjust the flame CHECKING MAIN BURNERS...
Page 64 SERVICING 5. Disconnect manometer after turning off gas at manual WARNING shutoff valve. Reinstall plug before turning on gas to fur- nace. ISCONNECT ELECTRICAL POWER AND SHUT OFF GAS SUPPLY. 6. Turn OFF any unnecessary gas appliances started in step 3. 7.
Page 65: Checking Hot Surface
SERVICING d. Turn on power and close thermostat “R” and “W1” contacts to provide a call for low stage heat. WARNING e. Measure the gas manifold pressure with burners firing. Adjust manifold pressure. HIGH VOLTAGE f. Use the modulation adjustment screw on the gas valve ISCONNECT ELECTRICAL POWER AND SHUT OFF GAS SUPPLY and turn clockwise one click using a pocket screwdriver...
Page 66: Checking For Flashback
SERVICING CHECKING FOR FLASHBACK INDUCED DRAFT BLOWER Flashback will also cause burning in the burner venturi, but is PRESSURE SWITCH caused by the burning speed being greater than the gas-air flow velocity coming from a burner port. PRESSURE SWITCH HOSE OPEN TO Flashback may occur at the moment of ignition, after a burner ATMOSPHERE...
Page 67: Checking For Delayed Ignition
SERVICING CHECKING FOR DELAYED IGNITION If this step is successful give the control a call for heat and wait five (5) seconds or until the furnace goes into lockout. If Delayed ignition is a delay in lighting a combustible mixture the control detects a failure it will now be shown on the diag- of gas and air which has accumulated in the combustion nostic indicator light/display.
Page 68: Memory Chips (Comfortbridge™ Furnace Only)
SERVICING MEMORY CHIPS (COMFORTBRIDGE™ FURNACE ONLY) On a ComfortBridge™ furnace using the shared data memory chip is a "last resort". The CoolCloudHVAC™ App should be used to populate shared data to the control via the "Shared Data" menu under Furnace tab. CHECKING FLAME SENSOR A flame sensing device is used in conjunction with the ignition control module to prove combustion.
Page 69: Troubleshooting
TROUBLESHOOTING Seven Segment Displays – Comm AC/HP Main Menu Mode Segment 1 Segment 2 Segment 3 Idle Constant Fan    Compressor Cooling, Low Stage    Compressor Cooling, High Stage    Compressor Heat, Low Stage ...
Page 70 TROUBLESHOOTING Alarm Code Definition Table Alarm Code De on Table Status Seven Segment Display Seven Segment Display Status Internal Control Fault    Data Not Yet on Network    Lockout Due to Excessive Retries or Recycles  ...
Page 71 TROUBLESHOOTING ClimateTalk Comm 2-Stage AC/HP Name 7-Segment Display Cloud / Phone App Idle Idle Constant Fan Constant Fan  Compressor Cooling, Low Stage Compressor Cooling, Low Stage  Compressor Cooling, High Stage Compressor Cooling, High Stage  Compressor Heat, Low Stage Compressor Heat, Low Stage ...
Page 72 TROUBLESHOOTING Furnace Name/Cloud/Phone App User Modiﬁable Op�ons 7 Segment Display Comments Last 6 Faults Views the control last 6 history faults.  Learn Menu Yes or No. Resets communica�on network.  Code Release No Views the control ﬁrmware revision number and Shared Data number. ...
Page 73 TROUBLESHOOTING Push Button Menu Options ClimateTalk Comm Outdoor 2-Stage AC/HP Name/Cloud/Phone App User Modifiable Options 7 Segment Display Comments Cool Trim Factor -10%, -8%,-6%, -4%, -2%, 0%, 2%, 4%, 6%, 8%,10% Trims the cooling airflow by the selected amount.  Cool Airflow Profile A, B, C, D Select cooling airflow profiles.
Page 74 TROUBLESHOOTING Diagnostic/ Symptoms of Abnormal Status LED Fault Description Possible Causes Corrective Action(s) Notes & Cautions Operation Codes • Furnace fails to operate. None • No 115 power to • Ma nua l di s connect s wi tch • Check 115 power to furna ce a nd •...
Page 75 TROUBLESHOOTING Diagnos�c/ Symptoms of Abnormal Status LED Fault Descrip�on Possible Causes Correc�ve Ac�on(s) Notes & Cau�ons Opera�on Codes • Fl a me s ens ed wi th • Short to ground i n fa me • Correct s hort a t fa me s ens or or •...
Page 76 TROUBLESHOOTING Diagnostic/ Symptoms of Abnormal Status LED Fault Description Possible Causes Corrective Action(s) Notes & Cautions Operation Codes • Furnace fails to operate. • Gas valve is • Mis wired gas valve circuit • Check wiring in gas valve circuit •...
Page 77 TROUBLESHOOTING Diagnostic/ Symptoms of Abnormal Status LED Fault Description Possible Causes Corrective Action(s) Notes & Cautions Operation Codes • Furna ce fa i l s to opera te. • Integra ted control • Loos e wi ri ng connecti on a t ci rcul a tor •...
Page 78 TROUBLESHOOTING Diagnostic / Sym ptom s of Abnorm al Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions Operation Codes • Furnace fails to operate. • Circulator blow er • Abnormal motor loading, • Check filters, filter grills/registers, •...
Page 79 TROUBLESHOOTING Condensate Drainage TROUBLESHOOTING Furnace combustion can be affected if a furnace is holding ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS condensate. Check for proper connections of drain hoses, FOUR WIRE MOTOR TROUBLESHOOTING make sure furnace condensate trap is clean. Make sure furnace is not improperly sloped. Make sure air conditioning Any manual testing of the 4 wire serial communicating motor coil drain is not interfering with furnace drain.
Page 80: Wiring Diagram
WIRING DIAGRAMS Ø CT O C NN U F CE O E B ERV C UNI M RO E C NN C/ 1 NT R A V LV W HI E O DI C W R G E ROP Z D N L (SI G O NDE DO R...
Page 81: Accessories
ACCESSORIES MODEL # MFG # DESCRIPTION AMU1620 Media Air Cleaner. For use with current architectural grey Goodman® and Amana® Brand P1251305F AMU1625 furnace models. The Amana (AMU*) and Goodman (GMU*) Media Air Cleaner is a high P1251306F AMU2020 efficiency air filtration device designed to remove dirt, dust, pollen and other microscopic P1251307F AMU2025 particles from the air passing through it.
Page 82 ACCESSORIES MODEL # MFG # DESCRIPTION High Altitude Natural Gas & LP Kit. Thi s ki t i s requi red when i ns ta l l i ng the ComfortBri dge furna ce a bove i ts ma xi mum ra ted a l ti tude. The ori fi ces i n the ki t ha ve been s el ected a s a res ul t of HAMFK-01 tes ti ng wi th the Ameri ca n Ga s As s oci a ti on.
Page 83 ACCESSORIES 97% MOD Furnace Accessories 97% MOD Furnace Accessories Model AM11 AE14 CFSB17 CFSB21 CFSB24 RF000142 Number Electronic Downflow Downflow Downflow Drain Media Air Description Subbase Subbase Subbase Coupling Cleaners Cleaner 17.5" 21" 24.5" *MVM970603BNB* *MVM970803BNB* *MVM970804CNB* *MVM971005CNB* *MVM971205DNB* *CVM970603BNB* *CVM970803BNB* *CVM970804CNB* *CVM971005CNB*...
Page 84 ACCESSORIES 97% Com Furnace Accessories Model LPM-10 LPLP03 HAMFK-01 Number Low LP High Altitude Description L.P. Kit Tank Natural Gas Kit Protection *MVM970603BNB* *MVM970803BNB* *MVM970804CNB* *MVM971005CNB* *MVM971205DNB* *CVM970603BNB* *CVM970803BNB* *CVM970804CNB* *CVM971005CNB*...
Page 85 CUSTOMER FEEDBACK We are very interested in all product comments. Please fill out the feedback form on one of the following links: Goodman Brand Products: (http://www.goodmanmfg.com/about/contact-us). ® Amana Brand Products: (http://www.amana-hac.com/about-us/contact-us). ® You can also scan the QR code on the right for the product brand you purchased to be directed to the feedback page.

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