Rapid heat GPH002 troubleshoot - Jacuzzi RapidHeat In-Line Heater U395000 [ Bathtubs and Whirlpools,

remove the mains plug overnight. Try next morning. If it still does it, you need a new one. If you get 4 or 5 years out of a toaster you are doing well.

rapidly? seconds or minutes.
Make sure you select hot water boiler in the thermostat setup. That can cause short cycling. Boiler need a longer cycle range. If not, remove stat and jump wires, Isolate the problem, is it stat or boiler?

Check the relay and the flasher

Hi
not heat but warm battery during charging is normal...but if discharges rapidly your battery may have reached the end of life..before buying a new battery pls make sure that your charger is ok...you can test it with another nokia with same charging plug..all the same on Nokia..
Hope this helps!
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Any recommended (see the tub instructions) cleaning product should be fine in the heater -- and the higher temperature of the "cleaning solution" should enhance the process. Just be sure to flush the tub's entire system with clean water before you bathe in it again!

Sounds like your electric cooling fan(behind the radiator) is not functioning. The thermostat might not be working,making the fan
not come on at all. I once put a toggle switch in my dash,when I had
an old CRX, just to turn on the fan, or it would overheat.

the gas orifices may be plugged try to poke them out with a fine wire . shyt off power and gas before cleaning as you don't want to be burned

Most likely the thermostat. The heater bypasses the thermostat. If the thermostat is blocked the only cooling is via the heater matrix. To check start the engine with the heater off and put your hand on the thermostat housing when the thermostat opens you should feel the housing get hot. If it doesn't the thermostat is faulty.

Bathtub heaters will not produce the heat out a the jets like you would feel coming out of a return jet in a swimming pool.
Bathtub heaters will ONLY maintain whatever temperature water you put in there. they only heat 1-2 degrees an hour. that is for a 1500 watt heater. Many heaters today are only 650 watt or perhaps 700 watt.

take it back to the dealer there been a Safety Recall Notice for the Heated Washer Fluid.
it says that GM will install a wire harness with an inline fuse, and it will be installed at no charge. It also says that parts should be available on or after November 1, 2008.