Drain cap kit92102Two replacement drain caps for draining and winterizing the water heater.
View this partDometic WH-6GEA Water Heater Parts & Exploded Diagram
The Dometic WH-6GEA is a six-gallon RV water heater that operates on propane or its electric heating element. Dometic provides both a numbered component-location drawing and a separate service-kit parts diagram for this model. Use the two references together to identify what needs replacing and confirm the exact service-kit number.
Check the model identification label first: WH-6GEA means a six-gallon gas/electric heater, revision A. Similar-looking WH-6GA gas-only or WH-9GEA models can require different electrical components, tanks or door kits.
Common WH-6GEA repair parts
Each pictured component opens its own UsedRVParts.ca listing. Dometic's service-kit numbers appear under each part name; the component-location positions are explained in the next section.
Drain cap kit92102
Igniter kit92104Replacement ignition component identified by Dometic for this gas/electric heater.
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Electric heating element92097Factory-listed electric element kit for the 120 V heating circuit.
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Gas/electric ignition control board91365Gas/electric DSI control board service kit; confirm the board and harness connection.
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Six-gallon gas system kit92100Gas-system service assembly listed for the WH-6GEA in the factory kit matrix.
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Access-door hardware kit92101Door fastening hardware for the heater's exterior access panel.
View this partMore pictured service parts: tank, P/T valve, switch, relay and fuse
These are additional Dometic-numbered parts listed for the WH-6GEA. Match your model identification and original component before ordering.
Six-gallon replacement tank92099Factory tank service kit for the WH-6GEA electric/gas configuration.
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Pressure/temperature relief valve90028Factory-listed 3/4-inch, 150 PSI P/T relief valve. A safety-critical service part.
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White dual control switch91230Interior dual-switch kit for gas and electric heater operation.
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Electric-system relay93849Factory-listed electrical relay service kit.
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2-amp fuse kit90145Service kit for the factory-listed 2 A fuse.
View this partFactory exploded service-kit diagram
The original Dometic diagram identifies the tank, gas system, electrical controls, door hardware, heating element and other service components by their manufacturer part numbers. Open the PDF to zoom in on the illustration and check the model-specific service-kit matrix on its following page.
Open Dometic service-kit diagram (PDF)
View the original service-kit drawing here
If your browser does not display the PDF here, use the full-size diagram link above.
Service-kit numbers available on UsedRVParts
| Part number | Replacement component | Where to look |
|---|---|---|
| 92102 | Drain cap kit | Drain outlet |
| 92104 | Igniter kit | 7 — electrode |
| 92097 | Electric heating element | 12 — electrical element access |
| 91365 | Gas/electric ignition control board | 11 — DSI control board |
| 92100 | Six-gallon gas system kit | 6 — gas valve and system |
| 92101 | Access-door hardware kit | 1 — access door |
| 92099 | Six-gallon replacement tank | 2 — heater tank |
| 90028 | Pressure/temperature relief valve | 10 — P/T relief valve |
| 91230 | White dual control switch | Interior switch |
| 93849 | Electric-system relay | Electrical junction area |
| 90145 | 2-amp fuse kit | Electrical controls |
Where is the component on my heater?
This second numbered drawing shows component locations on the assembled WH-6GEA. Its positions 1–12 are not the same thing as the service-kit part numbers in the exploded illustration above.
View the numbered component locations (Dometic manual PDF)
| Position | Component |
|---|---|
| 1 | Access door |
| 2 | Water heater tank |
| 3 | Flue assembly |
| 4 | Hot-water outlet |
| 5 | Cold-water inlet |
| 6 | Gas valve |
| 7 | Ignition electrode |
| 8 | E.C.O. / thermostat |
| 9 | Thermal cut-off |
| 10 | Pressure/temperature relief valve |
| 11 | DSI control board |
| 12 | Electrical junction box / element access cover |
Before choosing a replacement
No electric heat
The factory kit matrix identifies the 92097 electric element and 93849 relay. Electrical troubleshooting should also check the supply and protection devices.
Ignition does not start
The 92104 igniter and 91365 gas/electric board are separate service items. The cause may be elsewhere in the system.
Leak or worn drain cap
Inspect the 92102 drain caps, tank and connections. Never remove a pressurized or hot fitting.
Complete WH-6GEA water heater
For a full replacement, compare the unit label and installation opening. The complete heater listing shown here does not include a matching exterior access door; the door and its hardware must be selected separately.
Dometic WH-6GEA — complete water heaterImportant service precautions
This gas/electric water heater involves propane, pressurized hot water and AC/DC electrical circuits. Dometic requires qualified installation and service. Never bypass protective devices, modify the burner or operate the heater without water in the tank. A pressure/temperature relief valve must not be plugged, blocked or altered. Consult the Dometic installation and operation manual (PDF) before service.
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