A/C not working- possibly thermostat

[68 TWind]

Got to get if fixed, before "Pickin at the Lake" in September. We will be there, hope to see you.

Sorry about your issues. Makes me like my 1968 Armstrong all the more.

Good luck,

B.

[m.hony]

We will be there regardless. If I don't have it fixed by Little Sturgis bike rally August 19-21 we are taking Jannie's 2004 Airstream Interstate and Jannie's 1995 Allegro Bus.
It's good to camp with someone that owns 4 campers...
I wonder where the "upper board", "white 2 prong plug", and "T-connector" are and how do I get to them?
Remove the a/c cover inside the trailer?
Access from the roof?
Hmm...
I am intimidated by the whole process and I'm thinking about taking it to Reliable RV Repair in Gluckstadt.
If I ever replace the a/c units I will go with something simpler/ less complicated, more reliable, and 2 thermostats.


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[m.hony]

As I said, we will be at Pickin' regardless on spot #32.
Will you see a 2013 Airstream Classic or a 1995 Tiffin Allegro Bus?
Hmm...


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[rvb]

I have a Coleman heat pump with the remote thermostat that is very inconsistent about starting when first turned on. I usually turn the fan on first then the cool or heat setting. Once it is running it cycles on and off correctly, but, when I first turn it on it it may come on immediately or the compressor may not come on for 20 minutes or the fan may not come on until the compressor decides to kick in or the compressor may not come on unless I turn the fan on first. Sometimes it sounds like the compressor tries to kick in then stops.

Does this sound like a Thermostat issue (bad solder joints) or an issue with the roof top unit? I have the digital thermostat with the slide switches. I had the local "recommended" vintage Airstream repair shop rewire the T-state, check and clean the unit. They said everything was ok.

I do have a perfectly good round type Honeywell residential ac/heat thermostat with mercury switch. The only thing I can see that it wouldn't control is 2 fan speeds which could be wired with a separate spst switch and the gas furnace which I have on a separate thermostat. How well would that stand up to bouncing down the road between uses?

[jrschro]

We had the same problem on our 2014 Serenity. The first time it happened the tech was able to re-program the CCC. The second time the control board on the #2 AC was fried. It seems that if the drip pan gets clogged water will eventually reach the computer board and wires. Bad Design! I am going to have a hole drilled in the side of the pan as an emergency overflow. You might check your pan and see if it is draining properly.

[rvb]

I asked a friend who owns a refrigeration repair company and is also a long time RV'r and he said forget the mechanical thermostat with the mercury switch. That is designed for stationary use not a rolling earthquake. It will be continually working the spring as you run down the road and ultimately either break or be really inaccurate.