If you’re having trouble with your commercial heat pump, there are a few troubleshooting steps you can try before calling your trusted heating and air conditioning repair technician.
When a heat pump ices up, this usually signals a problem with the coils. Ice buildup on the coils will prevent heat from transferring between the refrigerant and the outside air, which can impede the operation of the unit. To melt away frost, the heat pump will switch to air conditioning mode periodically. If the unit fails to defrost, the controls or sensors may be faulty, which will require attention from a technician. Icing can develop when airflow is blocked, as well. Water leaking into the unit from overflowing gutters can also cause a layer of ice to form on the exterior of the unit.
To troubleshoot the problem, melt the ice using a garden hose. It’s crucial to keep the area around the outdoor unit clear and free of debris, say heat pump and AC repair specialists. If the gutters are leaky, call a reliable roofer to fix the issue.
A heat pump can run constantly if it’s set to an extremely low temperature during the summer. To fix this, check the thermostat and make sure it’s set to “heat”. If this isn’t the case, the unit may be too small or the interior space may not be adequately insulated to retain the heat. However, if the temperature in the winter is warmer than mid-30s and the heat pump is still running all the time, there might be a refrigerant leak or an issue with the compressor. These scenarios will need to be addressed by a professional.
You can count on Cooper Brothers, Inc. for high-quality HVAC services, including commercial heat pump maintenance and home furnace repair. Schedule a service appointment with our certified team by calling (408) 662-1538 or filling out our convenient online form. We serve clients in and around San Jose, CA.