Jacuzzi hot tub. Model H276
1) Safety question first
Why hasn't the GFCI tripped.
If your spa is not protected by ground fault., then you are at serious personal risk.
http://waterheatertimer.org/How-to-wire-GFCI.html#arc-fault
2) Replace the element.
http://waterheatertimer.org/How-to-test-water-heater-element.html
3) If element is cracked, it can continue heating to ground wire, causing runaway heating.
This applies to spas, and water heaters of all type.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7
SOURCE: I have a 2004 great lakes hot tub with a balboa
check to see that the flow switch is working properly, it may not have enough flow on low speed to allow the heater to turn on. Make sure your filter/s is/are clean. If you have a pressure switch instead of a flow switch, it may need to be adjusted or replaced.
SOURCE: I have a Jacuzzi Z110
When dealing with a big manufacturer like Jaccuzzi, it is unwise to swap top side controls. They make theirs proprietary on purpose so that swapping is more difficult (especially jacuzzi).
If you use the wrong one, the buttons on the controls will be misleading (such as temp up button cycling jets, or the ozone button cycling the lights, etc)
I would use manufacturer part.
SOURCE: Jacuzzi - GFCI keep tripping prventing Jacuzzi
i have the same model after unplugging everything one by one i got the breaker to stay on with the transformer unplugged. ordered new transformer installed works great!!
SOURCE: no power to hot tub...
In all liklihood, your problem is a breakdown in the insulation of the heating element. The elements tend to be mineral insulated then metal jacketed. Once you get a bit of corrosion on the jacket and a little water gets into the mineral powder, it's insulation properties fall off sharply, shorting out the power supply.
There are two practical ways of testing this:
The pro way of doing it is to borrow a high voltage insulation tester, disconnect the power leads from the element and check the resistance between one of the elements terminals and the jacket. Treat anything less than a megohm as a failure requiring replacement of the element. (nb. This is one of those rare cases where you need to use a proper insulation tester - an ordinary multimeter often fails to find this problem)
The alternative is just to replace the element and see how much difference it makes.
A.
SOURCE: jacuzzi hot tub pump. Put new pump and motor in
Check your suction plumbing to be sure it is sealed and tight. Then force some water through the pipe to see if anything is blocking it.
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