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KJJUSIE · 06-30-2020, 08:02 AM

I have a 2010 Phaeton 40 QTH Motorhome with a Denso dash air. The fan works but the light on the ac push button does not light up and I have no cold air. Could this be a blown fuse or relay? I located 2 fuses in the front left bay. One for the fan and the other for ac. Both are OK. Could it be a bad controller? I don’t have a wiring diagram to identify the fuses and relays. Any help is appreciated.

brandss · 07-02-2020, 10:37 AM

I had a dash ac problem and here is what Tiffin Service told me. You have a "computer" with lights on the drivers side front and passenger side rear. If you read the plastic sheet that identifies the fuse's and the lights on the computer, if the light in the front for the ac is lit, that means it is getting the info from the dash switch. If not, there is a problem from the dash switch to the computer.

I was told to check the connections to the switch if this is the issue.

KJJUSIE · 07-03-2020, 01:52 PM

Quote:

Originally Posted by brandss

I had a dash ac problem and here is what Tiffin Service told me. You have a "computer" with lights on the drivers side front and passenger side rear. If you read the plastic sheet that identifies the fuse's and the lights on the computer, if the light in the front for the ac is lit, that means it is getting the info from the dash switch. If not, there is a problem from the dash switch to the computer.

I was told to check the connections to the switch if this is the issue.

Did you resolve your ac problem?

brandss · 07-03-2020, 04:41 PM

Just found out what the issue was a couple days ago. A wire going to the compressor got rubbed by the compressor belt and cut in half. Lucky it wasn't more. Getting to my compressor is a booger so I hired Rush trucks to do the work. As a side note, they are great, at least in Jacksonville FL.

KJJUSIE · 07-04-2020, 08:31 AM

Quote:

Originally Posted by brandss

Just found out what the issue was a couple days ago. A wire going to the compressor got rubbed by the compressor belt and cut in half. Lucky it wasn't more. Getting to my compressor is a booger so I hired Rush trucks to do the work. As a side note, they are great, at least in Jacksonville FL.

Glad you got yours fixed. I will have to remove panels and look at my compressor.