Greetings, My heat pump indoor air handling unit occasionally stays running after the compressor and outdoor unit shuts off. When this happens, it will not stop until the breaker is turned off. I removed the thermostat from the wall mount (my thermostat is detachable digital model) while the fan was running, to test if it was the thermostat - the fan kept running indefinitely, even without the thermostat electrically attached. So, I'm thinking it's a sticking relay of some sort, possibly a fan delay relay. The Indoor unit is a Carrier and the following is printed on the air handler unit: Model No. FC4BNF030000ABAA Product No. FC4BNF030 I removed the cover from the air handler unit to inspect, and I see that it has two possibilities. Firstly is a circuit board with what appears to be a small relay onboard. Here is a picture: Smaller: http://joshua.raleigh.nc.us/pix/heatpump/s_img_1631.jpg Larger: http://joshua.raleigh.nc.us/pix/heatpump/for-prints/img_1649.jpg Secondy I see two black relay-like items mounted on a separate plate which appear to be inline with the blower - one is labeled "Therm-o-disc": Smaller: http://joshua.raleigh.nc.us/pix/heatpump/s_img_1642.jpg Larger: http://joshua.raleigh.nc.us/pix/heatpump/for-prints/img_1633.jpg For more context and more pictures, check out: http://joshua.raleigh.nc.us/pix/heatpump/ So, my questions: 1. Does this sound like a failed/failing relay? Where is it located? 2. Where might I purchase a replacement? Thanks in advance, Josh

OK, I have a 7 year old Bryant heat pump that is not working. I did not use it much in the winter, and when Spring came, I tried to get it to cool, and nothing happened when I turned it on. The circuit breakers were not tripped, although I reset them anyway. The thermostat seems to be fine. When I call up the cool function or the electric heat function, both the outside unit and thermostat make a single click. The inside fan turns on. When I turn the cooling/electric heat function off, I hear another click at the outdoor unit and indoor thermostat. I do not hear any other sounds coming from it when it is "on", even after sticking my head down next to it. The outdoor unit itself looks very clean on the inside. I removed the fan and looked for anything visual that may be wrong and unplugged and cleaned the contacts on the wire that leads into the house. I am assuming that I may have a problem with the capacitor and/or motor from reading a few other similar threads here. Is this the case? How would you recommend proceeding, and where is the best place to get parts for these units? Thanks in advance for any help on this. I am pretty good at fixing a lot of other things, but am just learning about these heat pumps. Shoey