Heat pumps offer ultra-efficient heating and cooling for Emerald Isle, NC, homes. However, like any other HVAC system, they’re not immune to malfunctions. If your heat pump starts short cycling, it’s likely because of one of these three reasons:
Dirty Air Filter
One of the most common reasons heat pumps short cycle is a dirty air filter. A dirty air filter restricts airflow through the system, preventing it from maintaining stable indoor temperatures. As a result, the system will cycle on and off more frequently to try to compensate.
Most heat pumps need air filter replacements roughly every three months. You must purchase and install a replacement that’s the same size and thickness for your system. Or, if your system has a washable filter, follow its manufacturer’s suggested cleaning schedule.
Malfunctioning Thermostat
Your heat pump relies on your thermostat to tell it when to activate and how long to run. So, if your thermostat starts having trouble measuring temperature accurately, it could cause short cycling.
You can test your thermostat by placing any ordinary thermometer next to it. The thermostat and thermometer should display temperatures within a degree or so of one another. If they don’t, your thermostat may need recalibration or replacement.
Refrigerant Leak
A refrigerant leak is one of the most serious reasons a heat pump might short cycle. Low refrigerant levels affect the heat pump compressor’s ability to reach proper operating pressures and temperatures. That may prevent the system from completing a heating or cooling cycle successfully.
A refrigerant leak requires professional HVAC repair. A skilled technician may use electronic leak detection equipment or UV dye to locate your leak. Then, they’ll patch the leak and refill your system’s refrigerant to the proper level.
Heat pumps need regular maintenance to keep working efficiently without part failures. Call Comfort Heating & Cooling Service today to ask about our comprehensive heat pump services offered in and around Emerald Isle, NC.
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