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Thread: dometic thermostat
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04-20-2018, 12:42 PM #11
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Pretty timely post. My imagine is at the dealer now to have a slide topper installed and a couple of warranty issues addressed. One is a faulty thermostat.
I let them know about this solution. They apparently had not dealt with this before because they were not aware of the fix.
Gotta love forums.2018 Imagine 2800bh
2018 Ram 2500
6.4 heni
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05-02-2018, 04:20 AM #12
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Noticed my AC would run to set temp, then would not go back on. Switch plate came off easily and when I put it back on the settings were all over the place. Faceplate? Thinking of different thermostat. What do I look for? 12v or 24v DC?
This is bedroom AC by the way.Jim and Belinda H. Pa.
2018 337RLS- 2nd ac, dual pane windows, table and chairs, Kodiak disc brakes 12-28-17 (Thanks Ed!)
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05-02-2018, 06:52 AM #13
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Got my imagine back last week and went out for the weekend. Dealer replaced the thermostat under warranty. Worked perfectly. Had to use the furnace as it got down into the thirties.
2018 Imagine 2800bh
2018 Ram 2500
6.4 heni
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05-02-2018, 05:28 PM #14
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I have one coming also....would have loved to get a programmable one.
Jim and Belinda H. Pa.
2018 337RLS- 2nd ac, dual pane windows, table and chairs, Kodiak disc brakes 12-28-17 (Thanks Ed!)
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05-02-2018, 11:58 PM #15
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Unfortunately its not as simple as replacing the thermostat with something from the big box store. The Dometic digital thermostats don't control the air conditioner(s) or furnace directly. The thermostat communicates with a control board mounted in the AC or near the AC. The control board tells the AC or furnace what to do.
Colan and Marilyn Arnold
Des Moines, IA - kind of, on the road full time.
Currently in Durango, Colorado
Momentum 350M originally, now a 397TH
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05-03-2018, 08:17 AM #16
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Does each ac unit have its own control board? I think my main ac unit cools but does not go back on again on its own. Only been trying the ac for the last couple days so don't have a lot of time in. I have it set to cool and fan to auto. Bedroom definitely does not come back on.....had a 10 degree shift and never re engaged. My BR thermostat went wonky so new one coming.....just need to address not coming back on.
Jim and Belinda H. Pa.
2018 337RLS- 2nd ac, dual pane windows, table and chairs, Kodiak disc brakes 12-28-17 (Thanks Ed!)
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05-03-2018, 10:17 AM #17
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Colan and Marilyn Arnold
Des Moines, IA - kind of, on the road full time.
Currently in Durango, Colorado
Momentum 350M originally, now a 397TH
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05-03-2018, 01:50 PM #18
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05-03-2018, 02:24 PM #19
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Should the blue wire be connected or not? It is difficult to say given there is no standard color scheme. However not all is lost.
The thermostat uses three wires: 12+, 12-, and communications. Given the thermostat has a display means the 12+ and 12- are working. Since the AC runs at least once, and the fan is operational this points to a functional communication wire. A round of about way of saying the blue wire should probably not be attached to anything.
Have you tried a system reset?
To reset:
1. Set the thermostat to off.
2. Press On (or the on/off symbol) and the + or upward triangle at the same time for three seconds.
3. Display will - -
4. Press on/off to complete initialization.Colan and Marilyn Arnold
Des Moines, IA - kind of, on the road full time.
Currently in Durango, Colorado
Momentum 350M originally, now a 397TH
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05-03-2018, 04:18 PM #20
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Did the reset and will test tonight. we are on a 30amp site so only running 1 ac at a time. 90 out and trailer staying around 75-78.....running continuously......will be interesting to see if the main ac goes off and comes back on......the fun part of buying an rv in the winter......worked during pdi so moved on! LOL
Jim and Belinda H. Pa.
2018 337RLS- 2nd ac, dual pane windows, table and chairs, Kodiak disc brakes 12-28-17 (Thanks Ed!)
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