Heat pumps are a great way to keep your home comfortable all year. They’re known for providing energy-efficient cooling in the summer and reliable heating during winter. But, like any system, a heat pump can run into problems.
One common issue homeowners face is when the defrost cycle stops working. When this happens, it’s important to address the problem quickly. Otherwise, you may experience lower efficiency and higher energy bills. If you’re dealing with this issue, we’re ready to help with professional heat pump repair in Arlington, WA, and surrounding areas.
What Is the Defrost Cycle?
The defrost cycle in a heat pump is a key function during winter months. It keeps ice from building up on the outdoor unit. Without this cycle, your heat pump would struggle to perform properly in cold weather. When your heat pump runs in heating mode, it absorbs heat from outside air. In freezing temperatures, moisture in the air can turn to ice on the outdoor unit. This ice reduces airflow and makes it harder for the system to work efficiently.
To prevent this, the defrost cycle kicks in to melt the ice. It’s a brief process that ensures the system runs smoothly, providing both heating and cooling with heat pumps. If the defrost cycle fails, ice can build up, leading to bigger problems.
Signs Your Defrost Cycle Isn’t Working
How can you tell if your heat pump’s defrost cycle isn’t working? Here are some common signs:
- Ice buildup on the outdoor unit
- Decreased heating performance
- Higher utility bills
- Frequent cycling on and off
If you notice any of these signs, it’s time to call for heat pump repair. Ignoring the issue will only lead to more problems down the line. Fixing it early helps keep the system running efficiently, saving you money on energy bills. Our reliable heat pump technicians can diagnose and resolve the issue quickly.
Common Causes of Defrost Cycle Failure
There are several reasons why the defrost cycle might fail. Let’s take a look at the most common causes:
- Faulty Thermostat or Sensor
A thermostat or sensor helps control the defrost cycle. If it’s faulty, the system won’t know when to start the defrost process. This can lead to ice buildup and a drop in efficiency. - Low Refrigerant Levels
Heat pumps rely on refrigerant to move heat. Low refrigerant levels can impact the defrost cycle. A lack of refrigerant makes it harder for the system to absorb heat and run efficiently. - Blocked Airflow
Debris, dirt, or even ice can block airflow around the outdoor unit. When this happens, the system struggles to breathe, making the defrost cycle less effective. Regular maintenance can help prevent this issue. - Mechanical Malfunctions
Heat pumps have several moving parts, and like any machine, these parts can wear down over time. Faulty components may prevent the system from running the defrost cycle properly.
We offer expert heat pump maintenance to prevent these issues. Our technicians know how to spot problems early and keep your system in top shape.
How We Can Help
When it comes to heat pump installation, repair, or replacement, we have you covered. Our professional heat pump services ensure your system operates at its best, giving you the peace of mind that your home will stay comfortable year-round.
We won’t quit until you’re cozy at Cozy Heating Inc. Contact us today for professional heat pump repair in Arlington, WA.