The capacitor was replaced on the last call after it was found to be bad. The fan seems to run normally, but it will continue to run when the compressor does not run. The fan turns off when it is in defrost mode. Earlier, the heat pump turned on then shortly later cycled on and off and continued running. I'm not sure, but it's been having very strange behavior ever since it's gotten cold out it seems. Over the summer it worked great. I'd like to change out the whole system with a matched one that's quieter and more efficient, but if it's not 100% needed and I can have this heat pump repaired, I don't think I can do it. The heat pump is from 2004 and the air handler is from this summer. I can't take the temperature of the air coming out of the ducts now since I gave the technician his thermostat that he left here the call before back, but from what I feel it is not at all as warm as it should be.