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Billy
Billy, Technician
Category: Pool and Spa
Satisfied Customers: 22349
Experience:  Licensed in Hydronics and Boilers
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I have a hot tub problem. My motor is spinning free. The low

Customer Question

I have a hot tub problem. My motor is spinning free. The low motor runs every once in a while. I bought a new tub switch and plugged it in and it did not get the tub running. When i clicked the switch i would get a loud buzz sound. The heater is working. It was up to 103. The tub has not worked for a week now and the temp is down to 75. There is a Sn code that is on the switch screen.
Submitted: 1 year ago.
Category: Pool and Spa
Expert:  Billy replied 1 year ago.
Hello,
this is a high temp limit fail..likely because flow was lost when heating.
This is a critical error and really should be looked at by a professional unless you are very well versed in using a meter and testing sensors.
If you wish to proceed that way please use reply