Gas and Oil Home Heating Furnaces - Heat Pump Problem
Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.View Full Version : Heat Pump Problem
JBantz3934
07-05-03, 10:26 AM
I live in the Arizona desert. Roof mounted heat pump works great when maintaining temperature for short runtimes but late afternoon and evening hours when it needs to run longer the unit will start to humm and the compressor kicks off. It sounds like water hitting a hot frying pan when I shut the unit off. If shut off about 15 minutes and turned on again it will run cold for short awhile. I have noticed that the drain is not dripping much water. The unit is ten years old Bryant model. Any suggestions?
GregH
07-05-03, 07:08 PM
JBantz3934:
It would be a good idea to check the condenser coil to make sure it is not dirty.
If it is you could try cleaning it with a garden hose. Just turn off the power to the unit and try not to get water in any electrical component.
It's hard to say what the noise is. Could be refrigerant running through evaperator coil or refrigerant leaking back through worn discharge valves in the compressor.
A way to check this is to let the unit run until the suction line at the compressor is cold. The suction line is the larger of the two lines connected to the comp.
Shut the unit off and see if the suction line immediately gets warm or hot. If it does the compressor needs to be replaced.
Try to pinpoint the source of the hot frying pan if it isn't what I am suggesting.
It would be a good idea to check the condenser coil to make sure it is not dirty.
If it is you could try cleaning it with a garden hose. Just turn off the power to the unit and try not to get water in any electrical component.
It's hard to say what the noise is. Could be refrigerant running through evaperator coil or refrigerant leaking back through worn discharge valves in the compressor.
A way to check this is to let the unit run until the suction line at the compressor is cold. The suction line is the larger of the two lines connected to the comp.
Shut the unit off and see if the suction line immediately gets warm or hot. If it does the compressor needs to be replaced.
Try to pinpoint the source of the hot frying pan if it isn't what I am suggesting.