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Woody Wright
Woody Wright Posted on Oct 22, 2012
Answered by a Fixya Expert

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What's your problem?I was camping last week and the compressor on my Coleman Mach 3 a/c unit came on with the thermostat in the off position. I switched off the breaker and let it sit for a while.

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Mike Butler

Mike Butler

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  • Dometic Master 6,674 Answers
  • Posted on Jan 28, 2013
Mike Butler
Dometic Master
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Joined: Aug 14, 2008
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I would check thermostat first. Remove compressor wire from thermostat and see if that cures starting by itself.

5 Related Answers

Anonymous

  • 828 Answers
  • Posted on May 31, 2008

SOURCE: Compressor starts and doesn't stop

Relay for the compressor may be stuck ( Contacts welded) both the fan and the compressor should operate at the same time. Have the relay(s) checked and possibly replaced.

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Anonymous

  • 1 Answer
  • Posted on May 18, 2009

SOURCE: Compressor will not come on. Fan runs great.

I fixed it. I had a dirty connection on the starter relay for the compressor. Thanks again for the help.

Anonymous

  • 828 Answers
  • Posted on Jul 24, 2008

SOURCE: PROBLEM WITH DOMETIC RV ROOFTOP AIR conditioner

Check at the compressor terminals between the Red and the terminal for the overload protector to see if you are getting power to the compressor on startup.

Anonymous

  • 614 Answers
  • Posted on Jun 28, 2009

SOURCE: a/c tripping breaker during peak heat of day

Chances are you have a bad breaker or loose wires on the breaker. What size breaker do you have on unit. Heat of the day plus full load on the unit could cause it to trip. Rus

Anonymous

  • 88 Answers
  • Posted on Mar 28, 2010

SOURCE: AC compressor won't start

hi,you might need a new compressor...you will need need to go back were you bought capacitor...buy a hard start capacitor too..this might crank the compressor...hope this helps.if you buy it..call an ill tell you how to wire it...if it dont ,you need new compressor...call michael..doctor airr..appl.repair...843-384-8474...

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I had a new Coleman Mach 15 installed this last August, last night the compressor stopped coming on for both the ac and heat pump.

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