I recently replaced my Raypak R185B heater with an electric heat pump since I just went solar. The heater was working perfectly but the heater core developed a small leak and I believe that the leak is what caused the electric pilot to rust.
This Circuit Board is becoming very difficult to find because Raypak no longer makes it. Raypak 1134-400 Pool Spa Heater Control Circuit Board 601720 1134-83-401A RP2100. The item "Raypak 1134-400 Pool Spa Heater Control Circuit Board 601720 1134-83-401A RP2100" is in sale since Monday, December 7, 2020. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Heaters & Solar Panels". The seller is "jazz7000" and is located in Staten Island, New York.
This item can be shipped to United States.