What Do I Do If My Swimming Pool Isn’t Heating?

All of our years of taking care for the backyard (and the occasional front yard) swimming pool and spas of Salt Lake City and all the surrounding Utah areas have taught us a thing or two. Some of our hard-earned knowledge can be found below:

Q. What do I do if my swimming pool isn’t heating?

A. The first thing to check is that the pump is running and is fully primed (meaning water is moving through it). If water is not flowing through the system, the heater won’t turn on.

The second thing to check is your heater’s pilot light, if your heater has a pilot light. To make sure it is lit by take off the front panel of the heater, get down on the floor, and look in the center of the heater where you should see a small, blue flame. If it’s not lit, follow the instructions on the inside of the door to light the pilot light.

The third thing to check is the contents of the traps and baskets. If the traps and baskets are full they can clog the system and prevent enough water flowing through the system.

If none of the above works, you’ll want to make sure filter pressure isn’t reading too high. Filter pressure should not go up more than 10 lbs. from when the clean filters were installed. If the gage reads 10 lbs above it’s “clean pressure” then you need to backwash or clean the filter(s). If none of the above work, call a swimming pool professional- like us- as there could be any number of other issues preventing your pool heater from working.

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