5
Spark Probe / Electrode
Part # 93868
Produces the ignition spark and senses burner flame for the direct-spark ignition system.
Search aliases: igniter, spark probe, spark electrode, flame sensor electrode
View 93868 part details & availabilityVisual Parts Finder
Atwood GCH10A-4E Parts Diagram & Visual Parts Finder
Don't know the part number? Use the exploded parts diagram to identify major components on the Atwood GCH10A-4E 10-gallon gas/electric DSI RV water heater with engine-heat exchanger, then open the permanent manufacturer part page and compare supplier inventory when available.
Manufacturer: AtwoodModel: GCH10A-4E10-gallon gas/electric DSI RV water heater with engine-heat exchanger
Exploded parts diagram
Select a highlighted item number
Source illustration: Atwood / Dometic GC10A-4E and GCH10A-4E exploded service-parts illustration · document MPD 93755 · 2018. RVPartScan adds interactive highlights and supplier-search links. Source item numbers are preserved.
Atwood GCH10A-4E part numbers in this visual finder
These component names and manufacturer identifiers are rendered as normal page content for search and accessibility. Supplier availability is separate from the persistent part identity. Replacement references can vary by serial number and revision.
8
Gas Valve Assembly
Part # 92089
Controls LP-gas flow and includes the 10-gallon valve/orifice configuration for supported Atwood models.
Search aliases: LP gas valve, solenoid gas valve, 10 gallon gas valve
Related / older references: 93844, 93870
View 92089 part details & availability11
Main Burner
Part # 96206
Carries the LP-gas flame into the combustion tube on supported 10-gallon Atwood water heaters.
Search aliases: burner tube, main burner assembly, 10 gallon burner
View 96206 part details & availability24
120V Heating Element
Part # 92249
Provides the 120V AC electric heat source when electric mode is enabled.
Search aliases: electric element, 1400 watt element, water heater heating element
Related / older references: 91160
View 92249 part details & availability28
Thermostat / ECO Kit
Part # 91447
Monitors tank temperature and provides over-temperature protection for supported Atwood water-heater control systems.
Search aliases: ECO thermostat, high limit thermostat, front mount ECO, thermostat ECO kit
Related / older references: 91470
View 91447 part details & availability30
Pressure & Temperature Relief Valve
Part # 91604
Relieves excessive water-heater tank pressure or temperature as a safety function.
Search aliases: P/T relief valve, pressure relief valve, temperature relief valve
Related / older references: 90028
View 91604 part details & availability33
Thermal Cut-Off
Part # 93866
Opens the 12V ignition circuit if excessive heat is detected near the burner compartment.
Search aliases: thermal fuse, thermal cutoff kit, fusible link
View 93866 part details & availability29A
Drain Plug Kit
Part # 91857
Seals the water-heater tank drain opening and is removed for draining or winterization.
Search aliases: water heater drain plug, nylon drain plug, tank drain plug
Related / older references: 91561
View 91857 part details & availability31B
12V Combo Switch
Part # 91230
Interior control switch used to command supported gas/electric Atwood water-heater operating modes.
Search aliases: gas electric switch, water heater combo switch, interior control switch
View 91230 part details & availability4A
Ignition Control Board
Part # 91365
Controls direct-spark ignition and the gas/electric operating sequence on supported Atwood water heaters.
Search aliases: circuit board, ignition board, control board, combo control board
Related / older references: 93851
View 91365 part details & availabilityNS
Inner Tank with Heat Exchanger
Part # 91028
Model-specific inner tank assembly incorporating the engine-coolant heat exchanger used by GCH applications.
Search aliases: heat exchanger tank, engine heat tank, GCH10A-4E inner tank
View 91028 part details & availabilityWhy the serial number still matters
GCH10A-4E production spans component revisions. A visually similar gas valve, burner, thermostat, or electrical part is not automatically interchangeable. Compare the original part marking, appliance serial number, and fitment notes before ordering.
Need a different part?
RVPartScan searches multiple supplier inventories by exact part number, brand, appliance, or description. If your component is not highlighted here, search the identifying number printed on the original part.
Browse rv water heater partsThe exploded illustration is referenced for part identification and linked to its source above. RVPartScan's hotspots, replacement-reference notes, and supplier links are independent annotations. Always verify fitment against current manufacturer service information and use qualified service help for LP-gas or 120V electrical work.