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Ask Michael Reush Your Own Question
Michael Reush
Michael Reush, RV Technician
Category: RV
Satisfied Customers: 3249
Experience:  Serving the rv industry since 1977
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My air conditioner cools just fine, but when it reaches the

Customer Question

My air conditioner cools just fine, but when it reaches the temperature set on the thermostat, it shuts off and then comes right back on. It never stays off. The fan is set in auto...
Submitted: 1 year ago.
Category: RV
Expert:  Michael Reush replied 1 year ago.
hi this is a direct function of the thermostat, replace it, and it will resolve your issue.........Michael, please get back to me for clarification if necessary.Michael
Customer: replied 1 year ago.
We did that and it didn't help
Expert:  Michael Reush replied 1 year ago.
thanks, ***** ***** operate properly when not on auto? fan running all of the time?
Customer: replied 1 year ago.
Yes, it runs with the fan on "on" as well. It cools like it should...it reaches the temp set, shuts off, and then immediately comes back on with the fan just running. We can tell that it isn't cooling at that point. When it gets warmer, you can hear the air conditioner kick on.
Expert:  Michael Reush replied 1 year ago.
To clarify, it has the same issue with the thermostat on "ON" or auto
Customer: replied 1 year ago.
Auto
Expert:  Michael Reush replied 1 year ago.
I hate to be redundant, but when its on auto, the fan and compressor come on at the same time, and supposed to go off at the same time.....when on ON, the compressor goes on and off, yet the fan continues to run... does it operate properly on one mode and not the other? I understand that on auto the compressor and fan go off then right back on,
Customer: replied 1 year ago.
I've not had it in the "on" mode so I don't know that answer.
Expert:  Michael Reush replied 1 year ago.
thanks, ***** ***** it in the ON mode, and let me know if the compressor does the same thing, also please tell me what air conditioner and thermostat you have, Michael
Customer: replied 1 year ago.
Dometic brand
Expert:  Michael Reush replied 1 year ago.
thanks, ***** ***** off of auto, and tell me what happens thanks
Customer: replied 1 year ago.
When it set on low, it runs continually
Expert:  Michael Reush replied 1 year ago.
the fan will run constantly, see what the compressor is doing
Customer: replied 1 year ago.
It does the same thing...it reaches the temp and the compressor shuts off
Expert:  Michael Reush replied 1 year ago.
the themostat controls a control module with relays on it up in the airconditioner, it sends a 12volt signal from it to pass 120ac power to the component fan/compressor, we need to see whats going on inside the control modle, and see if its getting a signal from the thermostat or if the relays are acting on their own accord... Is this something you can do , you will need a volt meter, thanks
Customer: replied 1 year ago.
I can later. Not now. Sorry..thanks for trying to help though. Good evening!
Expert:  Michael Reush replied 1 year ago.
thanks talk to you then..........Michael