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General Water Heater Information
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G10B, G10C / G610-3B, GH610-3 / G4SM / G6A-2, G6A-3, G6A-6, G6A-6P, G6A-7, G6A-7P / GC6A, GC6A-3,
GC6A-6, GC6A-7 / GH6-3, GH6-6, GH6-7 / GC6AA-7, GC6AA-7P / GC6AA-8, GC6AA-8P / G610-3,
GC10-1, GC10-2, GC10-2P / GC10A-2 / GC10A-2P / G10-1, G10-1P, G10-2, G10-2P
G610-3E, GH610-3E / GCH6-4E, GCH6-6E, / GC6A-7E / GC6AA-7E / GC6AA-8E / GC6AA-9E, GC6AA-10E
G6A-2E, G6A-3E, G6A-4E, G6A-6E, G6A-7E, G6A-8E / G6A-3E, GH6-3E / GH6-4E, GH6-6E, GH6-7E,
GH6-8E / GCH6A-7E, GCH6A-8E, GCH6A-9E / GCH6A-10E / GCH10A-2E, GCH10A-3E / GCH10-4E / G10-1E /
GH10-2E, GH10-3E / GC10-1E, GC10-2E / GC10A-2E / GC10A-3E / GC10A-4E
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Atwood Water Heaters

Table of Contents

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Table of Contents

   Summary of Contents for Atwood Pilot 6 Gallon

  • Page 1: Table Of Contents

    Atwood Water Heaters Table of Contents • AftermarketLP Gas Water Heater Model Identification ..............•...
  • Page 2: Aftermarketlp Gas Water Heater Model Identification

    Atwood LP Gas Water Heaters PART # MODEL# DESCRIPTION 96110 G6A-7 6 GAL. GAS - PILOT G6A-7P 6 GAL. GAS - PILOT RELIGHT 96117 GC6AA-8 6 GAL. GAS/ELECTRIC - PILOT GC6AA-10E 6 GAL. GAS/ELECTRIC - DSI 96163 GCH6A-10E 6 GAL. GAS/ELECTRIC - HEAT EXCHANGER - DSI 96121 G6A-8E 6 GAL.
  • Page 3: Pilot Models

    Pilot Models QUESTIONS The following questions should be answered during this portion of the manual: · Are the Robertshaw and White Rodgers thermostat gas control valves inter-changeable? · What is the minimum gas pressure required for proper water heater operation? ·...
  • Page 4: Model Number Explanation / Features

    Atwood 6 and 10 Gallon Pilot Water Heaters Atwood water heaters are designed and approved for use only in recreation vehicles (travel trailers, 5th wheels, motor homes, etc.). They are offered in two sizes: 6 and 10 gallon capacities. TYPE OF GAS IGNITION - This unit is ignited outside of the trailer by a match, piezo ignitor or other ignition device.
  • Page 5: Recommended Tools & Equipment

    Recommended Tools and Equipment U-Tube Manometer - This is the most accurate device for measuring gas pressure. If you use a dial-type manometer, it should be calibrated periodically with this type of manometer. Thermostat Wrench - This tool allows for easier and safer removal of the gas thermostat control. An adjustable version for different size controls is available through most RV distributors or you may fabricate one from angle iron.
  • Page 6: Gas Thermostat Controls And Pilot Assemblies

    Gas Thermostat Controls and Pilot Assemblies Only two makes of gas controls have been used on our pilot model water heaters. They are the Robertshaw “Unitrol” and White Rodger (formerly Jade or ITT). The Robertshaw control came in two different sizes of gas inlets: 3/8˝ inverted flare and 3/8˝ N.P.T. The inverted inlet control is no longer available.
  • Page 7: Pilot Sequence Of Operation

    Pilot Sequence of Operation Temperature Lever ONE SHO T E.C.O. 190° Gas Inlet 11" W.C. ON/OFF Pilot K nob Pressure Pilot Flame Pilot Ori c e (inside) Thermocou ple Air Shutt er JADE CONTROL SYSTEM PILOT OPERATION • Gas Pressure 11˝...
  • Page 8: Pilot And Main Burner

    Pilot and Main Burner Pilot Adjustment Only the gas pressure, gas valve and the pilot orifice regulate the height of the pilot flame. Early model gas controls have a pilot adjustment screw, but this screw has very little effect on the pilot. The pilot adjustment has been removed from the current White Rodger control.
  • Page 9: Trouble Shooting Guide - Pilot

    Pilot Water Heater A Division of Dura Automotive Systems TROUBLE SHOOTING GUIDE Effective: 5/26/98 Guides are only intended for use on Atwood ® products by service technicians who have successfully completed Atwood ® training. This guide should be used in conjunction with the appropriate Instruction Manual provided with the product and any applicable Industry standards.
  • Page 10: Engine Heat Exchange System / Aftermarket Heating Elements

    Engine Heat Exchange System Heat Exchanger Tubes Custom er supplied SAE 053 A type "E" hose clamp or evuivalent Annu alar Grove Heat Exchanger Tub es Coolant System Hose Custom er (5/8" dia. SAE 20R3 supplied tee or equivalen t) The engine heat exchange system allows a motor home to heat the water while traveling.
  • Page 11: Bolt-in Heating Element, Thermostat & Eco / 110 Vac Trouble Shooting Wiring Schematic

    BOLT-IN 110VAC Trouble-Shooting Heating Element, Thermostat & ECO Wiring Schematic Switch Hot Lead BLACK ( 1 )-BLACK Manual Reset High Temperature Ground Lead ( 3 )-GREEN Ground Limit Switch Temperature Common Lead BLACK ( 2 )-WHITE Re-Set Fixed Thermostat Adjustment Dial Button Element Early model water heaters with 110 VAC heating...
  • Page 12: Screw-in Heating Element, Thermostat & Eco / 110 Vac Trouble Shooting Wiring Schematic

    SCREW-IN 110VAC Trouble-Shooting Heating Element, Thermostat & ECO Wiring Schematic Switch Hot Lead BLACK ( 1 )-BLACK Ground Lead ( 3 )-GREEN Fixed Thermostat Ground Common Lead BLACK ( 2 )-WHITE Manual Reset High Temperature Element Limit Switch Current production water heaters with the 110 VAC When the 110VAC portion of the water heater is not heating option use a screw-in heating element, a heating water, the following diagnostic steps and...
  • Page 13: Electronic Ignition & Xt Models

    Electronic Ignition Models QUESTIONS The following questions should be answered during this portion of the manual: · What is minimum gas pressure for proper water heater operation? · Where on the gas solenoid valve can gas pressure be tested? · What is the minimum voltage needed for operation? ·...
  • Page 14: Model Number Explanation / Features

    Atwood 6 and 10 Gallon Electronic Ignition Water Heaters Atwood water heaters are designed and approved for use only in recreation vehicles (travel trailers, 5th wheels, motor homes, etc.). They are offered in two sizes: 6 and 10 gallon capacities. TYPE OF GAS IGNITION - This unit is ignited inside of the trailer by a remote switch.
  • Page 15: Recommended Tools & Equipment

    Recommended Tools and Equipment U-Tube Manometer - This is the most accurate device for measuring gas pressure. If you use a dial-type manometer, calibrated it periodically. Multi-meter - This is the most versatile meter and will test continuity and 12VDC. These tests will allow one to verify voltage problems or faulty components.
  • Page 16: Dsi Sequence Of Operation

    DSI Sequence of Operation • Gas Supply 11˝ W.C to solenoid valve is necessary • 12VDC Battery Voltage source to water heater or filtered side of Convertor • ON/OFF Switch It supplies 12VDC to water heater • Thermal Cut-Off A one shot heat sensing fuse that’s normally closed and sends power to the thermostat. When tripped by excessive heat (190°F), (i.e.
  • Page 17: Trouble Shooting Guide - Electronic Ignition

    Electronic Ignition Water Heater A Division of Dura Automotive Systems TROUBLE SHOOTING GUIDE Effective: 5/26/98 Guides are only intended for use on Atwood ® products by service technicians who have successfully completed Atwood training. This guide should be used in conjunction with the appropriate Instruction Manual provided with the ®...
  • Page 18 Electronic Ignition Water Heater (continued) Effective: 5/26/98 CAUSE SOLUTION EXCESSIVE OR INSUFFICIENT WATER TEMPERATURES By-pass kit valves not set properly ----------------------------Place valves in proper position Thermostat not seated against tank ----------------------------Reseat thermostat Defective thermostat----------------------------------------------Replace thermostat ERRATIC BURNER FLAME OR SOOTING Low gas pressure ------------------------------------------------Set inlet pressure at a minimum 11˝...
  • Page 19: Information Guide - Intermittent Ignition

    INTERMITTENT IGNITION Electronic Ignition Water Heater A Division of Dura Automotive Systems INFORMATION GUIDE Effective: 8/21/00 Guides are only intended for use on Atwood ® products by service technicians who have successfully completed Atwood ® training. This guide should be used in conjunction with the appropriate Instruction Manual provided with the product and any applicable Industry Standards.
  • Page 20 Intermittent Ignition Water Heater (continued) Effective: 8/21/00 CHECK THE AIR ADJUSTMENT The burner tube has an adjustable air shutter on it at the end where it goes over the orifice. Position the air shutter so that it is 1/4 of the way open. We are looking for a blue flame with small traces of yellow in the flame.
  • Page 21: Potted Channel Circuit Boards / Thermal Cut Off Device / Thermostat

    ** POTTED CHANNEL THERMAL CUT-OFF DEVICE CIRCUIT BOARDS Current Atwood direct ignition water heaters are equipped with a thermal cut-off device. This device is located on the Atwood **potted circuit boards can be tested using a incoming power wire and is connected to the thermostat. The multi-meter.
  • Page 22: Wiring Schematics

    Water Heater Wiring Schematics Junction Box on Back of Unit Wiring Schematic G6A-2E, G6A-3E, GH6-4E, GH6-3E Water Heaters (Rear Mount ECO and Battery Thermostat Models). White Ground Brown Blue White Non-ignition Circuit Light Board Orange Green REMOTE White SWITCH Valve Sparker Wire Connection Wiring Schematic G6A-3E,...
  • Page 23: Water Heater Wiring Revision Gc 10a-4e & Gc 6a-10e

    GC 10A-4E & GC 6A-10E Wiring In 2003, Atwood created a new gas-electric water heater. These units improve serviceability by moving most of the components for the electric portion of the water heater to the outside except the element and relay, which remain in a junction box in the rear. One module board controls both gas and electric. When replacing a 3E or 9E to a 4E or 10E some wiring changes are necessary.
  • Page 24: Water Heater Conversion 3e To 4e & 9e 10e

    INFORMATION NOTICE Atwood Water Heater Conversion A Division of Dura Automotive Systems GC10A-3E to GC10A-4E GC6A-9E to GC6A-10E ENGLISH, • Switch Conversion Instructions Effective 1/16/07 WIRING OF NEW COMBO SWITCH The gas/electric water heater (Models 4-E & 10-E) replaced all previous combination gas/electric water heaters.
  • Page 25: 10e - Sequence Of Operation & Quick Diagnostic

    Sequence of Operation Quick Diagnostic GC10A-4E & GC6A-10E GC10A-4E & GC6A-10E Power In When the wall switch is turned on to either gas, Following the sequence of operation: electric or both the power moves from the wall switch No power to board through the orange or white wire. to the DSI board through the Molex connector.
  • Page 26: Questions

    General Information QUESTIONS The following questions should be answered during this portion of the manual: · What causes the pressure-temperature relief valve to weep when unit is in heating cycle? · How can weeping pressure-temperature relief valves be reduced or eliminated? ·...
  • Page 27: Pressure Temperature Relief Valve / Water Heater Tank Corrosion / Atwood Clad Tank

    PRESSURE-TEMPERATURE RELIEF VALVE Weeping or dripping of a pressure-temperature relief valve while the water heater is running DOES NOT mean it is defective. This is normal expansion of water as it is heated in the closed water system of a recreation vehicle. The Atwood water heater tank is designed with an internal air gap at the top of the tank to reduce the possibility of weeping and dripping.
  • Page 28: Flushing Tank / Winterizing Instructions

    FLUSHING WINTERIZING TO REMOVE (FLUSHING) UNPLEASANT ODOR INSTRUCTIONS To insure the best performance of your water heater A rotten egg odor (hydrogen sulfide) may be and add to the life of the tank, periodically drain and produced when the electro galvanic action of the flush the water heater tank.
  • Page 29: Water Heater Terminology

    Water Heater Terminology Terminology Definition Terminology Definition Access Door hinged cover on outside of water Main Burner a gas and air mixing tube heater Main Burner Air Shutter the slotted sleeve on tube that By Pass Kit a combination of hoses and valves allows for gas and air adjustment that can aid in the winterization of Main Burner Orifice...
  • Page 30: Pilot Water Heater Parts Breakdown

    Pilot Water Heater 6-10 Gallon First number in matrix refers to illustration number, the second is the part number. 10 gallon bolt-on 6 gallon bolt-on 6 &10 gal. screw-in heating element heating element heating element...
  • Page 31: Replacement Part Reference

    Pilot Water Heaters REPLACEMENT PART REFERENCE January 2007 93212 Pilot Relight Kit - battery operated Retrofits on all pilot model water heaters ✗ ✗ ✗ ✗ ✗ ✗ 92973 Inverted Flare Adapter) ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗...
  • Page 32: Replacement Part Reference

    92249 110 VAC Element/Gasket (screw-in) ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ 91873 Thermostat/E.C.O. 110 VAC ✗ ✗ 91591 Conversion to Pilot 6 gallon 110VAC ✗ ✗ ✗ ✗ 91596 Conversion to Pilot 10 gallon 110VAC...
  • Page 33: Electronic Ignition Water Heater Parts Breakdown

    Electric Side Combination Water Heaters 6 gallon screw-in 10 gallon screw-in heating element heating element 6 gallon screw-in 10 gallon screw-in heating element heating element 10 gallon bolt-on 6 gallon bolt-on heating element heating element...
  • Page 34 Electronic Water Heater 6-10 Gallon 15-A Brown Brown 9 10 Rear-mount Front-mount 110 VAC 12VDC electronic electronic thermostats thermostats First number in matrix refers to illustration number, the second is the part number.
  • Page 35 Electronic Water Heaters REPLACEMENT PART REFERENCE January 2007 ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ 91470 130° Front Mount thermostat (not shown) ✗...
  • Page 36 Electronic Water Heaters REPLACEMENT PART REFERENCE January 2007 ✗ ✗ ✗ ✗ ✗ ✗ 91092 110VAC Switch (6 Gal.) ✗ ✗ ✗ ✗ 91089 110VAC On/Off Switch (10 Gal.) ✗ ✗ ✗ ✗ ✗ ✗ 91853 110 VAC Thermostat (Rect) NLA ✗...
  • Page 37: Xt Water Heater

    XT WATER HEATER MPD 92690 A Division of Dura Automotive Systems REPLACEMENT VALVE KIT 10 GALLON PATENT PENDING ENGLISH, FRANCAIS •Installation (et Canada) Effective 8/25/05 10 GALLON TE 10 GALLON XT 2004-2005 NEW FOR 2005-2006 1. Remove water lines (1), flexible hoses (2), mixing valve 6.
  • Page 38: Parts Reference

    XT WATER HEATER PART IDENTIFICATION SPARK IGNITION HEAT EXCHANGE COMBINATION GAS/ELECTRIC XT 6 gal XT 10 gal All tanks includes styrofoam jacket = ✗ Order by model ✓ order by color ITEM GALLON GALLON SPARK IGNITION ALLUMAGE PAR ÉTINCELLE REFERENCE LITRES LITRES ✗...
  • Page 39: Wiring Diagram

    MIXING VALVE MIXING VALVE BALL VALVE BALL VALVE – WINTERIZED IN USE...
  • Page 40: Service Tank Kit Part Numbers

    SERVICE TANK KIT PART NUMBERS REPLACEMENT PART REFERENCE February 2007 MODELS ● G6A-2, G6A-3, G6A-6, G6A-7 ● G10-1, G10-2 GAS PILOT-RELIGHT ● G6A-6P, G6A-7P ● GC6AA-7P, GC6AA-8P GAS/PILOT RELIGHT COMBINATION ● GC10-2P ● G10-1P, G10-2P ● GC10A-2P, GC10A-3P GAS & ELECTRONIC IGNITION ●...
  • Page 41: Marine Water Heater Parts Breakdown

    EHM 4-SM EHM 6-SM ELECTRIC WATER HEATER EHM 11-SM ALL MARINE WATER HEATER CAPACITIES EHM 20 F r o ITEM PART DESCRIPTION 90037 Thermostat , with ECO, plate, wires (110V) 90041 Thermostat , with ECO, plate, wires (220V) 93403 Drain Valve 3/4˝ 90045 Access Cover ( NEW STYLE...

Comments to this Manuals

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Latest comments:
  • C Kinson Dec 27, 2019 02:10:
    I am looking for the back flow valve plumbing diagram... or the valve itself??? Not mentioned anywhere?
  • Robert Gold Jul 20, 2019 08:22:
    I'm trying to get supply lines O rings for g6a 8e water heater not sure what there called