Adam F

I have a hot springs classic model F. All kinds of problems. Recently, the control board quit working, so I wired standard 110v plugs the circ pump and heating element (110v 1.5kw) and have been running them on a timer for about 10hrs per day. Been working fine, but yesterday it tripped the GFI. Isolated it to the heater. I took out my meter and measured 9.2 ohms resistance across the hot and neutral leads, and no continuity between the neutral and ground or neutral and hot. Is this normal? I unhooked the ground and plugged it back in, and the heater works just fine. So why is this? I won't get in the tub with the ground unhooked, but I have to run it like it is so the tub doesnt freeze (Ohio) Thanks! -Adam

How do I test the 2 thermistors that are located on the no fault 1500 heater housing? Can I bypass them somehow to force it to heat up?

It appears to be a PITA to get at the control box, its in a tight spot and doesnt open up from the outside. Id have to remove it to check. Can I unplug the heater from the box, and use my meter to see if I'm getting 110v at the plug?

Older early 90's unit. Just bought it. Previous owner said everything worked fine last year. I plug it in, and the tub light functions, thats it. Press the button for the jets and the light dims, buzzes, and about 10 seconds later, trips the breaker. The "power" indicator light on the panel never came on. Where do I start troubleshooting? Is there a repair manual for these available somewhere? I found the operators manual online but no repair manuals. Thanks! -Adam