Dometic water heater · 1 model line
Dometic water heater: Lock-Out Lamp
The red lockout lamp indicates the water heater has a no-heat fault or failed operation condition on Dometic WH-series LP gas water heaters.
What this message means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Dometic WH-6GA / WH-6GEA / WH-9GEA / WH-10GEA / WH-16GEA | The red lockout lamp indicates the water heater has a no-heat fault or failed operation condition on Dometic WH-series LP gas water heaters. | Dometic WH-6GA/WH-6GEA/WH-9GEA L.P. Gas Water Heater Manual Dometic WH-6GA/WH-6GEA/WH-9GEA/WH-10GEA/WH-16GEA L.P. Gas Water Heater Manual |
What you can safely check
- Turn the water heater off.
- Confirm the tank is full before any restart attempt.
- Write down whether the appliance was in gas or electric mode.
Stop and call a technician for
- Persistent lockout, overheating, ECO, thermal cut-off, flame, gas, or wiring diagnosis requires Dometic service.
Do not open gas components, bypass the ECO, or keep resetting an overheating water heater. Shut off LP and power and call service if the lockout persists.
Write this down before you call
- water heater model
- control switch panel
- gas/electric mode