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Carrier 52MQ series PTAC. Set dipswitch 4 to ON

Carrier 52MQ series PTAC. Set dipswitch 4 to ON (UP POSITION) in order to cycle the fan for use only when compressor is running. Fan runs 24/7 and won't cycle??

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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jumptrout51
  • 3361 Answers

SOURCE: Carrier PTAC Condenser ices over.

You are describing normal operation for a heat pump unit.

Posted on Mar 09, 2009

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  • 148 Answers

SOURCE: UNIT RUNS AN EXCESSIVE AMOUNT OF TIME AND AIR IS

DOES THE HOUSE FEEL DRIER IF IT IS 80 OUTSIDE WITH ALOT OF HUMIDITY THE UNIT WILL RUN FOR A LONG TIME TO REMOVE THE MOISTURE(HUMIDITY) OUT OF THE HOUSE BEFORE TEMP DROPS DRAMATICALLY IS THERE WATER COMING OUT OF THE DRAIN PIPE OUTSIDE

Posted on May 03, 2009

manhandy
  • 146 Answers

SOURCE: my carrier 38BRC024310 is not running outside.

some do have one, but i would check if you have burnt out fuse should be right next to the unite or a blown circuit breaker

Posted on Jun 24, 2009

SOURCE: 24ABR348A0031010 compressor starts then stops.

Hello RR Hard start can't hurt BUT dosen't sound like the problem.Do you have a scroll compressor?They don't need a kit.Does it start every time?It could be short cycling on LOW PRESSURE SWITCH.If the unit is (pumping down) during the run time you have a restriction in the system.Make sure the service valves are open ,do you have a filter dryer colgging up or a bad TXV valve also could cause short run times.20-30 PSI the switch cuts out.

Posted on Jul 15, 2010

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