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Old 04-30-2012, 10:24 AM   #1
1 Rivet Member
1971 31' Excella 500
Anderson , South Carolina
Join Date: Aug 2011
Posts: 18
new Dometic heat pump problem

Just installed a new 15,000 btu dometic heat pump on my 71 excella.
The fan blows fine , but the compressor is not starting up.I have a # 12 ga.
heavy duty drop cord run 120 feet to 120 volt outlet on my deck .
I have a 4000 watt generator that I could move right next to the trailor and
run a 25 foot drop cord from it to the trailer electric plug . Any advise on this ?

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Old 04-30-2012, 11:29 AM   #2
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,591
120 feet of extension cord, combined with a 15 or 20 amp circuit on your deck, might not do it. That 15000 btuh heat pump may need more to start it. Why not try the generator at least? If not, hook up and pull it somewhere that you can get a full 30 amp a campground.

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Old 04-30-2012, 11:34 AM   #3
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I did not run any numbers but I would guess voltage drop is your issue.

"One of the best lessons I've learned is that you don't worry about criticism from people you wouldn't seek advice from."

William C. Swinney

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