Troubleshooting a Furrion Thermostat Throwing an E3 Error Code

Question:

Error 3 code …2023 forest River Cherokee Timberwolf 39dl We have a facc10essa-bl single zone controller with a FACW12APZA multi zone thermostat We direct wired to check for electrical issues in the wiring and everything is good.

asked by: Deborah

Expert Reply:

The only reason that you would get an E3 error code on your Replacement Premium Wall Thermostat for Furrion Chill HE RV Air Conditioner # FR33PR would be because there was a loss in communication to the controller.

This is usually caused by wires being damaged, but since you've already checked that the last thing I recommend checking is that the "A" and "B wires are in the correct ports.

There was a manufacturer error from Furrion where these were flipped so I'd double check that to make sure they're correct. If all that's fine, then you just have a bad thermostat and will need to replace it.

expert reply by: Bryce D