A heat pump cools and heats your home in Chandler, AZ, in cycles lasting 10 to 15 minutes. Anything longer than that, together with a failure to reach your desired temperature, spells trouble for the system. Heat pumps that don’t shut off may have low refrigerant, an uncalibrated thermostat or a more serious issue.
Low Refrigerant Levels
Refrigerant absorbs heat from outside and transfers it into your home during the colder months. The piping it courses through can corrode over time and leak. You can sometimes tell a leak from a hissing or bubbling sound it makes, but once you notice it, have it addressed right away.
Faulty HVAC Thermostat
As a part of annual maintenance, our service technicians can calibrate your thermostat. The sensors lose their calibration otherwise, and if they misread the indoor temperature as lower than it is, it won’t ever tell the heat pump to shut down.
Heat Pump Stuck in Cooling Mode
Heat pumps have a reversing valve to reverse the direction of the refrigerant. This determines if the system runs in cooling or heating mode. If this reversing valve malfunctions, the system might continue running without stopping because the target temperature hasn’t been reached.
Undersized Heat Pump
If your heat pump runs at only a single speed, it may not have a blowing capacity strong enough for your home’s size. In such a case, you might notice that the rooms farthest from the air handler stay cool. Unfortunately, no repair can fix this issue; you would need a brand-new system.
Preferred Air can tell you just what sort of repair your heat pump in Chandler, AZ, needs to restore full functionality. Call today to schedule a convenient appointment. We back the work of our NATE-certified service technicians with a 100% customer satisfaction guarantee.
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