Heat pumps have a couple of unique functions that set them apart from other heating systems. Unfortunately, this also imparts a couple of unique problems that heat pump owners have to deal with. Below are 3 of the most common heat pump problems that require repair, and what can be done about them.
Stuck in Cooling/Heating Mode
A heat pump is able to switch between both heating and cooling modes. This is due to its ability to change the flow of refrigerant through the system. As refrigerant is responsible for carrying thermal energy, the ability to reverse its flow determines whether heat is being carried into or out of the house. When a heat pump becomes stuck on one mode or another, it means that it cannot reverse the flow of refrigerant. This means that the reversing valve, the part which actually reverses the flow, it probably stuck or broken.
Not Circulating Air
If your heat pump is on, but not circulating air, there could be a couple of reasons. First, can you hear the motor running? If the motor is running but you can’t feel air circulating, the fan belt is probably broken. The fan belt is what links the motor to the fan, enabling it to spin when the motor is turned on. If the fan belt is broken, the motor has no connection to the fan. This is what would cause the unit to turn on, but not circulate any air.
No Heat in Heating Mode
If your heat pump appears to be in heating mode, but is not putting out an appreciable amount of heat, then you may have a leak in the refrigerant line. As mentioned above, the refrigerant line is what is responsible for carrying thermal energy throughout the unit. If a leak develops in this line, it can drain refrigerant levels to the point that not enough heat can be carried to the interior unit to be circulated. If you see fluid dripping or pooling around your heat pump, you may have a refrigerant leak.
If you’re having problems with your heat pump, call AZ Air Conditioning and Heating. Our air conditioning repair services cover all of Los Angeles.