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@swamprat69 I completely took apart the heater from top to bottom. All the important pieces that I can’t replace seem functional, which I soaked and scrubbed to remove rust. Other than that I replaced most of the parts other that combo valve and the thermostat, both of which there are parts...

Working on it. I have called every person in the area and no one will touch it since it’s in ground system and the heater is 37 years old. That’s why I started working on it myself and joined the forum.

Hahaha thanks y’all. I only did 7 yrs as an avi tech then jumped chalks.

Spa heater Brand: ray pak Model: spa pak Model#: 153WHG The heater is from the early 80s and obsolete. I have still been able to find OEM parts from Amazon and other places though. I have tried drawing up a wiring diagram, but it’s incomplete. I do not knowwhat goes where between combo Valve...

Good Evening, My name is Chris and I live in the DFW area of Texas. I served 7 yes in Air Force in VA then moved to Texas where I recently bought a home (with a broken hot tub) with newfound fiancé. I ama very boring person so I don’t really have much else to say.

All, I am in need of dire help and at wits end with my heater. I recently changed the Spa PCB, unitherm governor, high limit switches,pilot generator, and pressure switch this week. Before nothing would work and now I can’t manually get the pilot light to turn and stay on. For some reason I...