Heat Pump Repair Tools

7 Vital Heat Pump Components in Fern Creek, KY

October 28, 2022

Heat pumps have become more popular as a wintertime heating method in Fern Creek, KY. One of the best ways to determine if it’s working properly in your home is to learn more about how it works in the first place, especially before colder weather arrives. Let’s discuss the seven vital components in a heat pump, what each does and why it’s essential for a well-functioning system.


The compressor moves the refrigerant from one location to another. It compresses the gas when it enters a high-pressure space and moves it to low-pressure areas. It also works in reverse while de-pressurizing the gas and moving it back to where it was initially.

This component plays a vital role in the functioning of the heat pump, and it must remain in good condition. If it malfunctions, there could be major issues with the entire system, and it may stop functioning.

Condenser Coil

The condenser coil is the part of the system that helps cool the refrigerant. Gas enters the condenser coil at a high temperature and then gets cooled by the air passing over it. This helps remove any heat from the refrigerant.

Thermostatic Expansion Valve

The thermostatic expansion valve regulates the refrigerant’s flow into the evaporator. It’s vital as it helps maintain the proper pressure within the system.

If the expansion valve isn’t working properly, the refrigerant will either flow too slowly or too quickly into the evaporator, causing problems with the heat pump and making it less effective.

Heating Element

The heating element is responsible for bringing heat into the home from the outside. It’s usually a coil that rests on top of a base, keeping it upright and away from other elements inside the heat pump system.

It’s most efficient when it’s in a location with a large amount of outside air or just the right amount of insulation. If the elements are in an area that’s too cold or too hot, there will be issues with how much heat is being produced and how effective the system.


The thermostat helps regulate the heat pump’s temperature and prevents overheating. It’s a sensitive part of the system that works with sensors to monitor the temperature and humidity levels.

It must work properly so the system can maintain an optimal temperature. If the system gets too hot, the heat pump won’t be able to heat your home adequately, which can also result in an increased energy bill.

Evaporator Coil

The evaporator coil is the part of the system where the refrigerant absorbs heat. The gas enters the coil at a low temperature, and as it warms up, it absorbs heat from the environment. It works in conjunction with a fan to move the refrigerant from one part of the heat pump to another.


The accumulator is a storage space for refrigerant, and it serves as a buffer between the high pressure inside your unit and the warmer outside air. It works to manage any changes in pressure in accordance with the outside temperatures.

This component is typically a small cylindrical tank with a high amount of pressure, so it’s important to ensure it doesn’t become damaged. If the accumulator gets damaged and the refrigerant leaks out, the entire system will need replacing. Keep in mind it’s advisable to leave the repair work to professionals rather than attempting to fix it yourself.

Contact KLM Heating & Cooling if you’re having any issues with your heat pump or for services such as indoor air quality consultations and furnace repair, installation and maintenance. We serve the Fern Creek, KY, area and offer 24/7 emergency services and a 100% satisfaction guarantee. Our team of highly skilled certified service technicians is ready to help with any heat pump needs.

Image provided by iStock

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