Furrion A/C troubleshooting

[tmorton1987]

I have 2 Furrion A/C on my TT that keep getting the E3 code. I took the TT back to the dealer to be looked at and the thermostat’s were wired wrong. I double checked their work and it appears that they were. Since I got it back the a/c’s wont cool and I’m still getting the E3 code. The A/C’s blew cold before. I have checked the wiring again, unplugged shore power and battery kill switch, reset thermostat, turn breakers off and back on. It does have two thermostats but they are multizone thermostats. Not sure if that could be the issue. Anything else to try?

I do have a trip to Hot Springs, AR next week so not too worried about it now. But summer is fast approaching in southeast Texas. It would have been nice to have them today while doing some minor upgrades. I’m not able to get it back to the shop till April 22nd.

Trailer is a 2024 Forest River Cherokee. Bought new in December 2023

[Bob K4TAX]

An E3 Error Code On A Furrion Air Conditioning System means there's a communication error between the zone controller and the thermostat.

Looks as though the thermostats could still be wired incorrectly. What does the book show? You may need to go to the Furrion site and download the manual for your units.

Bob