Question about Carrier Heating & Cooling
I have a Carrier 38QPA21-9 reversre cycle air conditioner in the hose. today A fault R01 and cod #42 is appearing on the screen. What is it and how can I rectify it?
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Posted on Jan 02, 2017
Here is some troubleshooting tips.
Also service available.
Posted on Feb 25, 2008
It could be the capacitor, or the relay switch on the main unit. Also, if you have had anyone doing yard work, they could have cut your thermostat wires by accident.
Posted on Jun 23, 2009
5 flashing is ' compressor drive' and check the high pressure, condenser fan motor capacitor for proper running
Posted on May 21, 2010
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