When you set the thermostat in your Huntsville, AL home, you expect your heat pump to cycle on and off like usual. Instead, it might run and run, leaving you wondering if it will ever stop. Let’s figure out what will cause a heat pump to run continuously.
The Role of the Thermostat
First, check your thermostat settings. You might have accidentally set it to “emergency heat.” Your system will not automatically shut off when you activate this setting. You must manually change that setting. Also, if the fan is set to ‘On’, the fan will run continuously. It should be set to “Automatic” so it only comes on when the system is heating or cooling.
Outdoor Temperature Challenges
Heat pumps work best in moderate climates. When temperatures dip below freezing, they struggle. The system needs to run constantly to maintain even a minimal level of warmth.Ice or snow buildup on the outdoor unit also hinders performance. This forces the unit to work harder and longer.
Airflow Issues
A dirty air filter restricts airflow. This is because it forces the system to run longer to circulate air. Be sure to change your filter every 1-3 months as necessary to prevent this. Blocked vents also prevent proper airflow. Check for furniture or curtains blocking your vents. Good airflow helps your heat pump operate efficiently.
Refrigerant Levels
Low refrigerant levels make the system less efficient. Leaks in the refrigerant lines cause low levels, and this makes the system work harder to produce heat and to cool the air. An HVAC maintenance and repair professional can check and refill refrigerant.
System Size and Condition
An undersized heat pump struggles to heat and cool your home. It runs continuously to try and reach the set temperature, but it simply doesn’t have the capacity to do so. An older, worn-out system also loses efficiency. It simply cannot perform like a new system. If you have an older heat pump, consider a replacement.
A heat pump that never stops can signal several issues. If problems persist with your heat pump, call One Source Heating, Cooling, Plumbing & Electrical so that we can diagnose and fix the issue.
