Furrion AC??

[ryno23NV]

So I know this has been discussed, but I am confused.
I posted this on the Grand Designs Customer Support page:

I have a 2024 Imagine XLS 22RBE. Not sure the AC is working properly when in Auto Mode. The thermostat is located in the bedroom and has a bump on the bottom which I assume is a temp sensor? I have read that bump is a sensor for the furnace only? If not for the furnace then, how does the AC regulate temp if the thermostat is in the bedroom and the temp sensor for the AC is located up in the return duct of the AC? I have tried pulling the temp sensor down through the foam filter and it didn't make a difference? Only works on low or high speed. Also, why is the thermostat behind the bedroom door that is closed at night to block light from the main door thus creating a different temp than whats being read in the AC unit?

So I opted to phone into Customer Service and all the lady who answered would say to my write up is that I have the latest equipment on my trailer and it shouldn't cycle in Auto Mode. If it doesn't work as advertised I need to take it in to a Grand Designs Dealer for repair.

So my confusion is do the thermostat and temp sensor inside the AC unit work together?

Thanks.
Mark.

 

[Insist on live music]

I have a Imagine but different model. I run in "Auto" mode all the time. The A/C in "living" space does NOT travel very well into sleeping area so we used a tower fan to move cool air there. In Northern climates I don't think 2nd A/C is needed but if you're in Florida keys for any length of time then . . . yeah, you gonna want and need a second A/C there. (note you need 50amp electric service to run 2 A/C)

 

[RV2600RB]

First, the lady you talked to doesn’t know anything.
It should cycle on and off on auto.
The nub on the “thermostat” is a sensor for the heater only.
The a/c sensor is in the air intake plenum.
On ours, I had to set the “thermostat” at 60* in order to have the trailer at 73* in 100* heat.
Search the forum for furrion a/c issues and you’ll find more information.
I’m trying a MicroAir thermostat and so far it’s looking promising (testing not complete yet).
Good luck. The Furrion a/c system leaves a lot to be desired.
If I had the $$, I’d replace it with a Dometic.
Had them on all our other RVs and they worked great.
For now, I’m just trying to make the Furrion work the best I can.
Rich

 

[ryno23NV]

Now that makes sense that the nub is for the heater and the AC sensor is the one up inside the unit.
Pleas let me know how the micro air thermostat works out.
Thanks Rich.

 

[ryno23NV]

Since the thermostat is not tied into the AC unit as far as temp sensing the thermostat placement is irrelevant?

 

[ryno23NV]

Got a reply from GD on the AC issue.

"With the Furrion a/c the way it is designed to work is you need to have the fan on low or high all the time. Not on Auto. The reason for this is the a/c temp sensor is up in the a/c and the fan needs to run on low or high so that it blows the room temp air over the sensor and then your wall thermostat will read the correct temperature."

Why do they give us the auto option on the thermostat?
My thermostat still doesn't read the correct temperature either.

 

[RV2600RB]

Got a reply from GD on the AC issue.

"With the Furrion a/c the way it is designed to work is you need to have the fan on low or high all the time. Not on Auto. The reason for this is the a/c temp sensor is up in the a/c and the fan needs to run on low or high so that it blows the room temp air over the sensor and then your wall thermostat will read the correct temperature."

Why do they give us the auto option on the thermostat?
My thermostat still doesn't read the correct temperature either.

The way it works on my camper is that on auto the temperature swing is much higher(4-5*) due to the air just having to percolate up into the plenum.
On high or low, air is constantly moving across the sensor so the temperature swing is lower (1-2*). I have a MicroAir thermostat and adjust it accordingly.
Rich