Furrion E1 fault code — Water heater
Applies to: FWH09A-AM, FWH09AFA, FWH09AFA-AM, FWH09AFA-AB
What E1 means
The Furrion tankless water heater troubleshooting manual lists E1 as Flame sense during ignition.
Owner-safe checks
- Turn the water heater off.
- Avoid repeated ignition attempts.
- Record whether LP supply was recently changed and contact service if the fault repeats.
Service-only work
- Flame sensing, combustion, air pressure, fan, solenoid, sensor, board, LP, exhaust, and internal water-heater diagnosis is qualified service work.
Safety boundary
Do not run a gas water heater with abnormal flame, blocked venting, gas odor, or repeated lockout. Shut off LP/power and call service if the code persists.
Official sources
Related symptom guides
- RV water heater has no heat or lockout light
- RV refrigerator or gas appliance will not ignite on LP
- Pre-service checklist for RV appliance calls