Atwood / Dometic GC10A-4E
12V Combo Switch · diagram item 31
GC10A-4E parts references identify callout 31 as combo 12V switch kit 91230.
Model reference sourcePermanent RV part identity
Atwood 91230 12V Combo Switch
Atwood / Dometic Part 91230
Atwood / Dometic 91230: Interior control switch used to command supported gas/electric Atwood water-heater operating modes. Review manufacturer model references and current supplier availability on RVPartScan.
Also called: gas electric switch, water heater combo switch, interior control switch
Manufacturer part referenceService assembly2 recently verified listings3 suppliers with recorded evidenceLast checked Oct 14, 2026
Manufacturer model evidence
Models that reference this part number
Atwood / Dometic GCH10A-4E
12V Combo Switch · diagram item 31B
GCH10A-4E parts references identify callout 31B as combo 12V switch kit 91230.
Model reference sourceSupplier evidence
Availability observations for 91230
Supplier availability is observational data. It can disappear or become stale without changing this permanent part identity.
Dyers RVRecently verifiedChecked Oct 14, 2026
Atwood Water Heater 91230 Dual Switch for Models 4E and 10E
Condition: Not specified by supplier
$27.72
SupplierRV Supply WarehouseRecently verifiedChecked Oct 13, 2026
Dometic/Atwood Water Heater Power Switch, White
Condition: Not specified by supplier
United RV PartsVerify availabilityChecked Aug 31, 2026
Dometic | RV Water Heater Power Switch | 91230 | 9108873700 | Gas and Electric | White
Condition: Not specified by supplier
$19.99
SupplierConfirm the part number, model and source documents before ordering. Check final price, condition and availability with the supplier.