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Old 01-24-2020, 02:28 PM   #1
ascdds's Avatar
Newmar Owners Club
Join Date: Oct 2016
Posts: 72
A/C fan keeps running

The fan of my Dometic rear rooftop A/C unit will not stop running when on A/C mode. It only runs when it’s supposed to when it’s in Heat Pump mode. The fan is set to ”Auto” like it always has been and like the front unit is. Front unit works normally but the rear fan keeps blowing even when the temp gets below the set temp and the A/C stops cooling. Any ideas?

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Old 01-24-2020, 05:08 PM   #2
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Switt's Avatar
Newmar Owners Club
Freightliner Owners Club
Join Date: Feb 2015
Location: Kingsport,Tennessee
Posts: 179
Turn off battery disconnect for about one minute. Should reset thermostat solved my problem.

2019 Ventana 4037
2014 CRV
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Old 01-24-2020, 05:44 PM   #3
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Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 40,565
I would first do the factory reset on the thermostat!
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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Old 01-24-2020, 09:00 PM   #4
Join Date: Jan 2019
Posts: 49
I had a similar problem with one of mine and it turned out to be a thermistor. After running fine most of the day , lt would start acting up. the fan would keep running and the compressor would shut off. The fan would keep running and then shut off for a few seconds and then start again and the compressor would then come back on. After reaching temp then the comp. would shut off and the fan would keep running.

The HP worked just fine during the night .
Doug & Melba and sidekick Sugar
2014 GMC dmax, crew, dually
2015 DRV Tradition
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Old 01-25-2020, 10:14 AM   #5
ascdds's Avatar
Newmar Owners Club
Join Date: Oct 2016
Posts: 72
I pulled the fuse for the thermostat, left it out for a minute then reinserted it and that reset the thermostat and solved the problem. Thanks for the help.
Scott and Regina Cross
2017 Newmar Ventana LE 4037
2016 Jeep Wrangler Sport
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