Be Aware of End-of-Summer Heat Pump Problems

Mar 14, 2019

We’re finally getting to the end of summer in Brisbane, which is great news for everyone tired of the hot and humid days. If you use a heat pump to keep your home cool, you know that it has worked extra hard these past few months, which could put it at risk for a breakdown. Thus it’s wise to keep an eye on your system for issues that may arise as the days start to get cooler. Here are some of the more common heat pump problems that can occur due to system stress.

Reversing Valve Failure

This valve is responsible for allowing the heat pump to switch between air conditioning and heating modes for those occasional cool mornings in winter. It is a four-way junction that is in the refrigerant line. Inside the valve is a slide that moves between two positions and is controlled by an electromagnet. Two things can happen to cause the valve to malfunction: the slide can stick or the electromagnet can lose its charge. If the slide is stuck, an Intagas technician can open the valve and reset it. If the electromagnet has lost its charge, it will need replacement.

Refrigerant Leaks

Similar to an air conditioner, a heat pump relies on its refrigerant supply to cool your home. If a leak develops in the line, it will drain the system of fluid needed to operate properly. As the level of refrigerant drops, so will the heat pump’s output capacity. When the refrigerant level drops too low, the system will break down entirely. If you notice fluid dripping from your heat pump, call for repairs as soon as possible.

Short Cycling

This occurs when the heat pump turns itself on and off every few minutes and usually occurs because of electrical issues. Other causes include a thermostat that needs adjustment or new batteries, damaged compressor or a malfunctioning blower.  Even a clogged air filter can cause your heat pump to cycle incorrectly. If your heat pump is set at the correct temperature and short cycling continues, have one of our professional inspect it. If the issue isn’t addressed, you’ll pay significantly more in repair cost in the long run.

Odd Noises

If you hear rattling sounds, this usually means there is loose hardware, particularly in the air handler. Turn off your heat pump immediately if you hear grinding or squealing and call us immediately, as these sounds indicate a more serious problem such as worn bearings.

Contact Mick on 0435 579 094 or send a quick email.

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