Question about Comfort-Aire RAD-243 Air Conditioner

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Turn on unit starts blowing cold air for about 5 minutes the compressor kicks off. will not come back on. you can turn it off and back on and compressor will start back up again for about 5 minutes and does same thing over and over. compressor shuts off will not come back on until you shut it off and back on.

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  • Expert
  • 144 Answers

Soulds like when it starts the high pressure switch kicks it out when you turn the power off you equalize the pressures check you coils and filter they need to be cleaned most likely this is the problem

Posted on Sep 11, 2010

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

professio101
  • 158 Answers

SOURCE: the unit only blows warm air. it just stopped

The compressor is not starting either because:
1. The compressor has gone bad
2. The system is low or out of refridgerant. There may be a slow leak, when there is no refridgerant in the system the compressor will not start.

Fix:
Re-charge the system with appropriate refridgerant, if the system has a charge already or holds a charge when you charge it then the compressor should start.
If not the compressor could be bad, sometimes you can get a hard start kit instead of replacing compressor. If the system does not hold a charge then you have to find and repair the leak before anything else...

Good luck. Please give good rating, it meens a lot to me....Feel free to contact me again...

Posted on Aug 01, 2009

dhj144
  • 80 Answers

SOURCE: central heat/air unit for home blows cold air

Replace your thermastat or if it is a replacement check your wires to make sure you have them right. Refer to the instruction manual for setting the heat anticipator and the cooling anticipator!
Red to Yellow calls for cooling
Red to White is usually calling for heat
Red to Green calls the Indoor Fan
Red to Orange is the call to a reversing valve on heat pump units!

Posted on Aug 22, 2010

Sea Breeze
  • 4654 Answers

SOURCE: Will not cool properly.

You have either a faulty thermostat, dirty condenser and evaporator or a faulty run capacitor. Need to service soon before the compressor is damaged. Sea Breeze

Posted on Jul 06, 2009

projdoc
  • 2236 Answers

SOURCE: A/C UNIT FANS BLOWS NO COLD AIR COMPRESSOR KICKS ON THEN OFF

check fins in the condenser coils (the fins on the outside part) for obstructions or alot of bent fins. should be free and clear. but chances are the freon level is low. can be serviced, but may be cheaper to replace.

Posted on Jul 20, 2009

freetek
  • 5568 Answers

SOURCE: sometimes compressor does not kick on

It sounds like the coolant charge is marginal. There are sensors that can monitor the pressure levels and can disable the compressor to prevent damage to it. You need a tech to check the system before you lose it completely. Figure on $100-120 cost for check and recharge if needed.

Posted on Aug 06, 2009

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If you are technically inclined, search for leaks using soapy water at all tubing connections.
For overheating compressor: Clean the condenser with compressed air or vacuum cleaner. If still overheating, start switch or start capacitor may be bad.
Thanks
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