Question about Carrier Heating & Cooling
SOURCE: ruud heat pump outside fan
You may be right in looking at the motor. It uses a different speed on heat than cool. The heat cycle uses low speed, usually red. Some manufactures use blue (medium). Cool uses black, high speed. If you are confident, switch the low speed wire with the high speed and see if this changes anything. If the fan motor isn't the problem, check the other setting (cool) if the overload trips, you may need to look into a new capacitor or compressor, if so, you can install a hard start kit. these are start boosters, and are inexpensice, sometimes they will give another year out of the comp. but I've put them on and they have lasted 5 years.
Posted on Mar 15, 2008
I believe this to be either a bad, miswired, or loose connections on the thermostat or thermostat wires. If this is not the problem then a bad circuit board is probably your issue. A licensed technician can use a amp meter and multi meter to trace this problem. Good Luck.
Posted on Jun 25, 2008
It sounds like your defrost board failed. You will need a tech to replace it. With that model it may have a parts warranty but you pay labor(?)
Posted on Jan 18, 2009
With a heat pump system there are always going to be a back up heat strip inside the Air Handler.
If you detect a faint humming in the Condenser call your local service company and ask them to come and replace your capacitor in the condenser. The humming is from the contactor engaging but not being able to start the compressor due to not having the required Microfarads to start it.
Let me know if this helps
Posted on May 08, 2009
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