Heat pumps are a great alternative to traditional heating and cooling systems with a separate furnace and air conditioner. If this is your first home with a heat pump, you might notice some things you’re not used to, such as a heat pump that is buzzing or making other noises.
It is not uncommon for a heat pump to make noises, but which noises it makes are key to learning what the problem is. Call A+ Heating & Cooling – Electrical for a heat pump tune up so you stay comfortable year-round.
A heat pump looks like an air conditioner. They are big boxes with a large fan inside and are located outside. Like an air conditioner, it is common for a heat pump to make some noise. Usually heat pumps are located in an area outside where you most likely can’t hear it, but if you hear any of the following loud noises, there’s no cause for alarm.
When the refrigerant in the heat pump changes from a liquid to a gas, there is usually a startup noise. Some people notice that when their heat pump starts, it sounds like an out-of-balance washing machine. This noise is caused by the compressor and it can be loud, but it should stop after a few minutes. Your heat pump might make similar noises when it shuts down, too.
Heat pumps can also keep us warm in the winter. However, being outside in the cold can cause some parts to freeze over. Luckily, a heat pump can defrost itself to combat the cold. If it is very cold, you may hear your heat pump go into defrost mode multiple times. It is normal to hear your heat pump make a “swooshing” sound every time this happens.
As electricity runs through your heat pump, you could hear humming or buzzing noises. This is normal, as there are a number of coils and contactors that are known to hum as electricity runs through them.
As the fan in your heat pump kicks on, it can be noisy, but is not often bothersome. This sound should be consistent and smooth and not obnoxiously loud.
If your heat pump is in a location where you hear it frequently, there are a few things you can do to stifle the noise. First, see if you can find out the age of the heat pump. Heat pumps have an average lifespan of 10 to 15 years – and if yours is older than that – it may be time for a replacement.
Having regular maintenance performed annually on your heat pump will help extend its lifespan and prevent future repairs. A trusted heat pump technician from A+ Heating & Cooling – Electrical can inspect your heat pump and replace noisy or loose parts like fans and motors. Ask your heating and air conditioning technician about compressor sound blanket wraps and vibration isolation dampener mounts to help quiet some of the noise as well.
Now that you know what loud noises are normal from a heat pump, it’s important to know what sounds to listen for to learn when your heat pump has problems and might need repairs from a professional contractor.
If you hear any of these noises, try changing the air filters first. If noises still persist, turn off your unit and inspect it. Clear it of any outside debris. You can also try to tighten loose bolts and screws to stop rattling noises. If you’ve done all of this and your heat pump is still making noises, call A+ Heating & Cooling – Electrical right away.
Although heat pump noises are normal, hissing, humming, and shrieking noises are not. Call A+ Heating & Cooling – Electrical to request an appointment to keep your heat pump running comfortably quiet today. For all of your home’s HVAC system needs, including heating and air conditioning repair and installation services, contact the friendly HVAC system technicians at A+ for service today.