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Fix my Pool and Spa
Fix my Pool and Spa, Owner / Technition
Category: Pool and Spa
Satisfied Customers: 1100
Experience:  Over 24 years in pool and spa service and construction
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I own an 8 yea old hotsprings jetsetter hot tub (JJ model,

Customer Question

I own an 8 yea old hotsprings jetsetter hot tub (JJ model, 110V). The water isn't being heated. i read the resistance on the heater and it appeared to be in the correct range. The indicator ligths are not blinking, so there are no fault condition indicators. The pump seems to work fine. Today i checked the voltage to the heater at the heater relay board. it read 4.6 volts. I think it should be 110, so does this mean the heater relay board is bad?
Submitted: 1 year ago.
Category: Pool and Spa
Expert:  Billy replied 1 year ago.

can you first tell me if the flow switch is actually making contact?

Customer: replied 1 year ago.
I don't know what the flow switch is or where to find it.
Expert:  Fix my Pool and Spa replied 1 year ago.

The flow switch will look something like this

You need to know if this switch is bad. Follow the wires from flow switch onto circuit board and where it plugs in you need to jump out the pins that it plugs onto, this will make the board think the switch is closed and allow power to go to the heater. You also need to be sure the filters are new or at least been cleaned. Low flow of water can cause the heater to shut down.