Furrion ยท 12 codes
Furrion tankless water heater fault codes
Every fault code, display message, and status light listed in Furrion's manuals for Furrion F2GWH tankless water heater; Furrion 2.4 GPM tankless water heater (FWH09A). Select a code for what it means, what you can safely check, and when to call a technician.
Confirm your model
Codes are model-specific. Match the model number on the appliance data label to one of these before using the table:
F2GWH, Lippert PN 2022107551, FWH09A-AM, FWH09AFA, FWH09AFA-AM, FWH09AFA-AB
Where to look and what to record
- water heater model
- wall controller display
- water flow state
- LP supply status
- F2GWH model label
- user control panel code
- displayed temperature
- LP supply state
Code table
| Code | What the manufacturer says | Listed for |
|---|---|---|
| E0 | Water outlet temperature system fault / Water outlet temperature probe failure | All listed models |
| E1 | Flame sense during ignition / Ignition failure or accidental flame off during ignition | All listed models |
| E2 | Detected fake flame signal / Flame sensing interrupted during normal operation | All listed models |
| E3 | Over temperature mechanical sensor faulty / ECO open before ignition or during normal operation, normally from outlet water over 140 F | All listed models |
| E4 | Water inlet temperature system fault / Water inlet temperature probe failure | All listed models |
| E5 | Air pressure; Lippert TI-514 clarifies E5 as a blower motor or air pressure switch circuit condition / Blower motor failure | All listed models |
| E6 | Temperature surge / Over temperature when outlet water exceeds 140 F for 3 seconds | All listed models |
| E7 | Solenoid valve fault / Linear valve failure | All listed models |
| E8 | Air pressure switch not detected before ignition or cut off during normal operation | Furrion F2GWH tankless water heater |
| E9 | Flame sensed before ignition | Furrion F2GWH tankless water heater |
| En | System timer after the water heater ran longer than 20 minutes | Furrion F2GWH tankless water heater |
| Fd | Winter-use mode or freeze protection; the unit runs briefly and shuts off in freezing conditions when LP and 12V power are on | Furrion F2GWH tankless water heater |
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.
Do not keep operating a tankless gas water heater with repeated display faults, abnormal heat, blocked exhaust, gas odor, or unstable hot-water temperature.
Do not leave a tankless gas water heater running unattended. Stop the water demand and investigate open fixtures or leaks before restarting.
Troubleshooting guides
- Furrion tankless water heater low flow or low temperature
- Furrion tankless water heater freeze mode or freeze damage
- Furrion water heater pressure relief discharge or drain tray water
- RV refrigerator or gas appliance will not ignite on LP
- RV water heater has no heat or lockout light
- Airflow, venting, or exhaust fault