Your mini-split heat pump should cycle two to three times per hour. If it’s running more frequently or for longer periods, there may be an issue. Common problems like improper sizing, maintenance needs, or hardware failures can cause heat pumps to cycle abnormally.
Understanding what’s normal and how to troubleshoot heat pump cycling can help you keep your system running efficiently.
How Long Should a Heat Pump Run When It Turns On?
A heat pump should typically run for 10-15 minutes when it turns on. If it runs for longer than that, it may indicate that the heat pump is not properly sized for the space it’s trying to heat or cool. There could also be other issues, such as maintenance problems or hardware failures, that are preventing the heat pump from operating efficiently.
The heat pump should automatically shut off once it reaches the desired temperature set on the thermostat. If it’s taking 30 minutes or more to reach the target temperature, that’s a sign that something may be wrong.
The cycle length might be longer if the heat pump has been off all day and is just starting up, as it needs to work harder to bring the space to the desired temperature. But once it reaches that point, the cycle length and frequency should return to normal.
How to Make Your Heat Pump Cycle Less Frequently
If your heat pump is running too long or cycling on and off too often, it could be wasting energy and causing unnecessary noise and distraction. This could be due to a few different issues:
- Check the Air Filter
One of the first things to do is check and replace the air filter. A dirty filter can restrict airflow and cause the heat pump to work harder than it needs to. - Thermostat or Electrical Issues
Problems with the thermostat or loose wiring/electrical components could also be tricking the heat pump into thinking it needs to run more than necessary. A heat pump repair specialist can diagnose and fix these types of issues. - Age and Wear
If the heat pump is older and experiencing persistent problems, it may be time to consider replacing it, as the cost of frequent repairs could outweigh the benefits of keeping an aging unit. - Frozen Evaporator Coils
In the winter, short cycling could be caused by frozen evaporator coils. Heat pumps should have defrosters to prevent this, but if the system is not designed for cold Maine winters, it may struggle.
Get Help With Your Heat Pump in the Brunswick or Hermon, Maine, Areas
If you’re concerned about your heat pump’s cycling behavior, the experts at Valley Home Services can help. We specialize in ductless mini-split heat pumps and can diagnose and resolve any issues you may be experiencing. Give us a call at (207) 945-9008 to make sure your heat pump is running efficiently.
