Heat pumps use auxiliary heat to supplement the heat generated by the heat pump when outdoor temperatures are very low or when there is a high demand for heat. If you experience problems with your heat pump’s auxiliary heat, it can result in reduced heating performance, higher energy bills, or even a complete system failure. In this section, we’ll discuss how to troubleshoot common auxiliary heat issues with a heat pump.
Check the thermostat settings
The thermostat is an essential component of the heat pump system, and it controls the auxiliary heat. If you’re having issues with the auxiliary heat, the first thing to check is the thermostat settings. Ensure that the thermostat is set to the right temperature and that it’s set to the heating mode.
Inspect the air filter
If your heat pump’s air filter is dirty, it can restrict airflow and reduce the system’s efficiency. This, in turn, can cause the auxiliary heat to turn on more frequently, leading to higher energy bills. Check the air filter and replace it if it’s dirty. Make sure you change the air filter regularly to ensure that the system runs efficiently.
Check the circuit breaker
If your heat pump’s circuit breaker trips, it can cause the auxiliary heat to stop working. Check the circuit breaker and reset it if it has tripped. If the circuit breaker keeps tripping, it may indicate a more serious electrical problem, and you should contact a professional technician.
Inspect the outdoor unit
The outdoor unit of your heat pump can become dirty or clogged with debris, such as leaves, dirt, or grass clippings. This can restrict airflow and cause the auxiliary heat to turn on more frequently. Check the outdoor unit and clear any debris that has accumulated around it. If the unit is heavily soiled, you may need to clean it with a garden hose or contact a professional technician for a more thorough cleaning.
Check the defrost control board
When your heat pump’s outdoor unit is covered in ice, the defrost control board should turn on the auxiliary heat to melt the ice. If the defrost control board is malfunctioning, the auxiliary heat may not turn on, leading to system performance issues. Check the defrost control board and replace it if it’s malfunctioning.
Conclusion
In conclusion, the auxiliary heat is a critical component of a heat pump system, and if it’s not working correctly, it can lead to reduced heating performance and higher energy bills. By checking the thermostat settings, inspecting the air filter, checking the circuit breaker, inspecting the outdoor unit, and checking the defrost control board, you can troubleshoot and resolve many common auxiliary heat issues with your heat pump. If you’re unsure how to troubleshoot or fix an issue, it’s always best to contact a professional technician to avoid any potential safety hazards.
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