Furrion E5 fault code — Water heater
Applies to: FWH09A-AM, FWH09AFA, FWH09AFA-AM, FWH09AFA-AB
What E5 means
The Furrion tankless water heater troubleshooting manual lists E5 as air pressure; Lippert TI-514 clarifies E5 as a blower motor or air pressure switch circuit condition.
Owner-safe checks
- Turn the appliance off.
- Check only for obvious exterior vent or exhaust obstruction from outside the RV.
- Record the water heater model, serial number date code, displayed E5, and whether the blower starts or stops during a call for hot water.
- Contact Furrion or a qualified technician if E5 returns.
Service-only work
- Connector, pressure switch, flex tube, Venturi, blower, control-board, wiring, 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
- Furrion 2.4GPM Tank-less Gas Water Heater Troubleshooting and Service Manual
- Lippert TI-514 Furrion Tankless Water Heater E5 Error Code - Blower Motor or Air Pressure Switch Circuit