It’s normal for heat pumps to form frost or ice on the outdoor coils as part of their operation. When the heat pump detects ice buildup, it temporarily shifts into cooling mode to reverse the refrigeration flow. As the heated refrigerant moves through the outdoor coils, it melts the ice and defrosts the system. Once the defrost cycle is complete, the unit shifts back to its original heating mode.
In this article, a reputable heating and air conditioning contractor discusses what you need to know about frozen heat pumps.
If you frequently encounter issues with your heat pump freezing up, this usually indicates a serious problem that needs to be fixed by a professional technician. If left unaddressed for a long period of time, the unit may suffer bigger and more costly problems that could eventually lead to a total breakdown. Some of the issues a professional HVAC contractor can address include:
low refrigerant levels
malfunctioning defrost controls
sticking reverse valve
damaged outdoor motor fan
If your heat pump unit is completely blanketed with frost, immediately shut the system off and call a local heating and air conditioning repair service to address the problem. But before you reach this urgent situation, consider following these troubleshooting steps:
Regularly inspect and replace the air filter to make sure it’s not dirty or clogged.
Check the indoor vents and registers to ensure they’re not blocked by furniture or other stored items.
Sweep away leaves, grass, dirt and other debris that can potentially hamper the outdoor unit’s airflow.
Clean the gutters to avoid overflow accidents that can compromise your outdoor HVAC unit.
Air Pro Inc. is a premier source of heat pump and furnace repair solutions in Albuquerque, New Mexico. We’re committed to providing honest service and industry-leading products to ensure a safe, comfortable living space for our customers. Call us today at (505) 224-2806 or fill out our contact form to set up an appointment.