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Old 06-29-2021, 01:55 AM   #1
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Brand: Thor Motor Coach
Model: 32N
State: Missouri
Posts: 9
THOR #5930
Coleman Roof AC - Won’t Run

Good evening. 2016 Thor Windsport, has two 13,500 Coleman roof top units with separate thermostats. Bedroom unit is working perfectly. Second unit was working fine on our last trip, other than seeming to be less sensitive to the thermostat setting than in previous trips. Now it will not do anything. Thermostat will turn on the furnace, but the fan nor the ac will kick on. Checked “appliance” fuse and front ac breaker, both fine. The ac unit makes a very slight click when controls on the thermostat are moved. The noise is very faint and can be heard inside the unit but not on the roof with the cover removed.

Fan spins freely on roof top unit. All connections to both capacitors appear tight and in good condition.

Can anyone offer some guidance?

Thank you for your time.

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Old 06-29-2021, 03:30 AM   #2
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Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 9,729
THOR #7035
Contacts in the control relay in the A/C.
Or breaker to that A/C tripped.
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Old 06-30-2021, 12:34 AM   #3
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Brand: Thor Motor Coach
Model: 32N
State: Missouri
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THOR #5930
Thank you for your reply & assistance
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Old 06-30-2021, 12:36 AM   #4
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Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
Posts: 745
THOR #4488
Quote:
Originally Posted by Missile3b View Post
Good evening. 2016 Thor Windsport, has two 13,500 Coleman roof top units with separate thermostats. Bedroom unit is working perfectly. Second unit was working fine on our last trip, other than seeming to be less sensitive to the thermostat setting than in previous trips. Now it will not do anything. Thermostat will turn on the furnace, but the fan nor the ac will kick on. Checked “appliance” fuse and front ac breaker, both fine. The ac unit makes a very slight click when controls on the thermostat are moved. The noise is very faint and can be heard inside the unit but not on the roof with the cover removed.



Fan spins freely on roof top unit. All connections to both capacitors appear tight and in good condition.



Can anyone offer some guidance?



Thank you for your time.
If you're running on the generator, make sure both circuit breakers on your generator are on.
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