All of a sudden my pool heater is not working. When I opened the pool about a month ago it was fine. Now I get a display code of 126 and it won't turn on. I've seen this commonly reported. What does it mean?
The 126 is not an error code, but it maybe the temp of the water that the heater is reading. If the heater thinks the water is 126 degrees, it will not start at all.
If the heater is reading the wrong water temp, the problem is the Thermister, which is the sensor that is suppose to read the water temp. You will need to replace this sensor in order to correct the problem with the heater. It is really easy to do!
If you have a manual for the heater, if you go to the Replacement Parts Listing for the Electrical System, page 53 in the online version, the Thermistor is Item #9. It goes into the left side of the manifold in the to place, between the first two manifold bolts.
I had the exact same problem listed here (having a 126 on the control board for the Sta-rite heater). After reading this update, I decided to order the part and I installed it this afternoon. It was the right answer for my problem.
I have the same issue and replaced the Thermister but this didn't fix the problem. I am still getting the same error which is 126 e13.
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