Question about Dometic Rooftop RV Air Conditioner

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I have a Carrier A/C with remote. It was recently

I have a Carrier A/C with remote on my RV. It was recently installed to replace a bad unit. The remote will not bring on the furnance. The inside temp at 73 degrees and the heater function set for 80. When I depressed the emergency furnace button for 5 seconds, the heater came on. Why will the heater not respond to the remote?

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I do not know the unit. However, I am willing to make a guess. It sounds as if this may be some kind of heat pump. If this is the case, than when you turn on the heat there will be a time delay to prevent compressor damage. Emergency heat skips the compressor and turns on electric heat strips. If my guess is right, you should be able to turn on the furnace and wait 5 minutes and it will start. I hope I am guessing right and you have no problem.

Posted on Jul 14, 2010

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Posted on Jan 02, 2017

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1) replace batteries by new ones type ALKALINE
2) CLEAN the contacts batteries with contacts batteries
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God bless you. see the diagram
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