Furrion RV Water Heater Accessories

Which Furrion tankless water heater models do these replacement parts fit?

These accessories are sourced for Furrion tankless RV water heaters, including the FWH series. The Furrion replacement RV tankless water heater controller in this collection is the OEM unit for diagnostic code retrieval and temperature control. Always confirm your full model number from the unit's data plate before ordering, since controller pinouts and door dimensions changed across production runs. If you need a fitment check, text or call 817-984-1852.

What does the Furrion tankless water heater controller actually do?

The controller is the digital interface that ignites the burner, regulates outlet temperature, and reports fault codes on the display. When the controller fails, you typically see a blank screen, no ignition, or an error code that persists after a power cycle. Replacing the controller restores temperature setpoint control and DSI ignition function without pulling the entire heater.

Should I replace the controller or the whole water heater?

If the burner, heat exchanger, and gas valve still function but the display is dead or the unit will not ignite, the controller is the most common failure point and a targeted replacement saves the cost of a full swap. If the tank is leaking or the heat exchanger is corroded, plan for a full unit replacement. Customers running tank-style units instead can review options in our 10 gallon RV water heater collection.

How do I protect my water heater during off-season storage?

Drain the heater, bypass it at the inlet and outlet, and run RV antifreeze through the freshwater lines before temperatures drop. Pairing the controller replacement with a proper winterization routine prevents heat exchanger cracks that controllers cannot fix. Our RV winterizing kits include the bypass valves, antifreeze pumps, and blowout plugs needed for the job.

What shipping should I expect on Furrion water heater accessories?

Controllers and small accessories ship via standard ground carrier, typically within 1 to 2 business days. Orders over $100 ship free. If you are ordering alongside larger appliances or a roof AC unit, those items may ship freight separately; the product page will list the freight method inline.