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01-02-2022, 04:05 PM
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#1
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Established Member
Join Date: Dec 2013
Location: Cape Coral
Posts: 47
M.O.C. #13958
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A/C control box
Any idea where the A/C control board is located in a 2015 3625RE? Not the thermostat. Have two a/c, the one in the bedroom is turning on and off too much. It gets to temp then shuts down for several minutes to then start back for a few more minutes. Doing all this with no change in room temp. A few times the fan has got stuck on constantly. I have read on Dometics site that there should be a individual control box for each a/c. Can’t find it in my unit. Haven’t taken the underbelly off yet. Thanks
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2015 GMC DRW 3500
2014 3625RE
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01-02-2022, 04:13 PM
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#2
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,678
M.O.C. #24086
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I'm thinking the control board in the unit on the roof?
Depending on which version Dometic air conditioner you have, I believe there is also a thermostat sensor in (inside) the wall or in the return air duct work?
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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01-02-2022, 04:27 PM
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#3
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Established Member
Join Date: Dec 2013
Location: Cape Coral
Posts: 47
M.O.C. #13958
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Thanks, See the thermostat in the bedroom, it’s in the corner of the room.
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2015 GMC DRW 3500
2014 3625RE
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01-02-2022, 05:46 PM
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#4
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Established Member
Join Date: Mar 2015
Location: Cheyenne
Posts: 10
M.O.C. #17173
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Put some tape over the sensor .. Run it and see what happens. Mine did the same thing. Short cycled. Tape worked. Control boards are on each unit above the cover.
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01-03-2022, 07:17 AM
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#5
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,678
M.O.C. #24086
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In the files section there is a Dometic AC Drip pan leak TSB. It shows how to access the control board in the rooftop unit.
https://www.montanaowners.com/forums...?do=file&id=52
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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01-17-2022, 02:59 PM
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#6
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Montana Master
Join Date: Jan 2018
Location: Northville, NY
Posts: 807
M.O.C. #21158
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Quote:
Originally Posted by edbales
Put some tape over the sensor .. Run it and see what happens. Mine did the same thing. Short cycled. Tape worked. Control boards are on each unit above the cover.
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Where would that sensor likely be located?
__________________
Jim B
2017 Lariat F-350 FX4, CC, SB, 6.7 PSD 4WD
2018 MONTY 3731FL, at our private winter site in GA
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01-17-2022, 06:56 PM
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#7
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Established Member
Join Date: Mar 2015
Location: Cheyenne
Posts: 10
M.O.C. #17173
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Typically somewhere on the ceiling in the bedroom. Could be on the wall. My AC was blowing cold air right on to it an the AC compressor would shut off.
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