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View Full Version : When heat is on the outside fan comes on for 5 seconds shuts off and comes on again


ted123
Oct 22, 2012, 09:47 AM
Bryant unit>>>when heat is on the outside fan comes on for 5 seconds shuts off and comes on again for 5 seconds and shuts off is this normal? The fan inside the house is running but there is no heat. After 90 minutes of the fan running I turned up the heat by 10 degrees. The red light came on and the temp inside started to go up. So if I just leave the temp at a certain degree the red light comes on for a short period but goes off and the house never gets warm unless I raise (way up) the temperature inside??

Grady White
Oct 22, 2012, 07:20 PM
Presuming this to be a heat pump, the red light indicates the electric strip heat is on. The problem with your outdoor unit could be a low refrigerant charge, bad pressure switch, or bad contactor.