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Heat Pump Guide Common Questions

Even if you installed a heat pump in your Issaquah home years ago, you may still have questions about the normal operation of your indoor and outdoor units. Here are answers to a few of the more common questions about heat pumps.

Do I need to schedule a heat pump maintenance visit before each season, or just once a year?

Scheduling a yearly maintenance visit is necessary to the proper upkeep and safe operation of your heat pump. This also extends the life of the system and helps it run more efficiently. However, scheduling a visit before the heating and cooling seasons isn’t necessary, unless you’ve had any concerns or issues with your heat pump.

Should I be concerned about the steam coming from my outdoor unit?

All heat pumps have a defrost cycle that melts the frost off of the outdoor coils in the winter. The steam rising from the outdoor unit results from the defrost cycle. If you notice that the defrost cycle lasts longer than ten to fifteen minutes, or if it cycles on and off frequently, you should call a service technician to look at your heat pump. There could be an issue with airflow that is affecting the compressor.

I just installed a heat pump. Why is my furnace running?

Many heat pump systems use the furnace fan blower to help distribute the heat throughout the house. Unless you’ve installed a geothermal heat pump, your furnace is most likely your backup heater, so it will kick on when the outside temperature drops below 20° F.

Is it really that important to clean my outdoor unit? It’s impossible to keep it clean all the time.

Yes, cleaning the outdoor unit is an especially important maintenance task. Not only does a routine cleaning of all the outdoor components maintain your heat pump’s efficiency and performance levels, it also prevents safety hazards. When you schedule a yearly maintenance visit with one of our technicians, cleaning the coils and outdoor unit is part of the service; however, if you want to clean the coils yourself, have one of our technicians show you how to do this before you attempt it on your own. You could suffer from electric shock if you are not familiar with the proper cleaning procedure. You can also help by making sure that the debris is cleared from around the outdoor unit.

If you have any questions about the heat pump in your Issaquah home, or if you’d like to schedule a maintenance appointment, give us a call any time.