Jacuzzi RapidHeat In-Line Heater U395000 [ Bathtubs and Whirlpools, "espree 536 u640" Questions

...Espree 536 and it wouldn't shut off. I cut the air line off at the pump and nbow it won't stay on for more than a few seconds. Any ideas? I have a Jacuzzi whirlpool bath model U640 Espree 536 ...

...espree 536 model U640. The jets would not shut if with the switch. I unplugged the unit and now it will not turn on When a jetted tub will not turn off it is usually because the air switch in the ...

...Espree 536 ser# JBBJCQ mod# U640 with 10 jets one of the four back jets, top right has stopped working. either one of ur hoses has come off or is stopped up get to the sides and see if one has come ...