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09-06-2021, 04:53 PM #1
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Airxcell Thermostat Reads 99F When Cooling
The main thermostat by the door reads the temperature normally when nothing is operating. If I set it to cooling the room temp stays where it was for a few seconds, then the display flashes off and on a few times then the display goes to 99 F and stays there as long as I am in the cooling mode.
I replaced the unit with a new one and it does the same thing.
Any ideas?2021 Solitude 310GK
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09-06-2021, 05:17 PM #2
I think they are supposed to display ambient unless you move the temp up/down button or the mode button.
2019 GMC 3500 SRW Sierra Denali Duramax
2020 Reflection 315RLTS
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09-06-2021, 05:48 PM #3
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Agree with above, unless you know it is below that temp. If it is, then you may have a short in the temp sensor circuit.
Sent from my VS988 using Tapatalk2021 GD Reflection 303rls
2019 ram 2500 Crew Cab tradesman 4x4
Autoslider 5th wheel hitch.
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09-06-2021, 08:23 PM #4
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09-06-2021, 10:05 PM #52019 GMC 3500 SRW Sierra Denali Duramax
2020 Reflection 315RLTS
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09-07-2021, 06:33 AM #6
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You have a defective thermostat. It should display settings when any button is pressed once and then revert to displaying ambient temperature.
Every problem is not caused by a "short". A short will trip the fuse/circuit breaker.2010 Jayco 26(SOLD)
2011 Keystone Outback 277RL(SOLD)
2021 Grand Design 268BH
2013 Ford F250 XLT, 6.2L Gas
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09-07-2021, 10:35 AM #7
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I had the dealer replace the thermostat while the rig was in for some other warranty stuff. I had never checked the wiring before which I did this morning. It was wired incorrectly with one of the AC leads going to a remote sense terminal. All is well now.
Thanks for the inputs.2021 Solitude 310GK
New Grand Designer Owner to be
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