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My previous plumber installed my sediment trap about 6 feet away from the inlet of the heater (directly out of the source line). He also installed a regulator/governor and reduced down to 1/2" pipe for a length of about 6ft to my 400k NG raypak heater (the distance from the meter to the...

OK Guys, I have an interesting situation. I currently have a 15 yr old Raypak 406a P-M406A-EN-C natural gas that needs replacement; it fires up properly but the firewall is so old it overheats. Here's the situation - I've found a professional series 409a that is propane B-R409A-EP-X. Would I...

Hi, I'm receiving a hi limit 1 error after the water temperature hits about 95 degrees F. The unit door gets pretty warm to the touch. I recently replaced the unitherm governer but not the bypass. I believe the hi limit is working properly considering the unit itself is becoming warm...

Hello everyone, I have a natural gas 406a Raypak/Rheem heater continuously cycling after starting up. The first time the heater sparks and calls for heat the heater will stay lit for sometimes a couple minutes. After this time period the burners will go out, but the pilot will stay lit...

My Raypak heater has started to continuously cycle once fired up. The time between cycling has been intermittent but usually around 20 seconds. The heater will spark and then show “heating” on the display but then “spark” will reappear for a second and the flame will go out. This process will...

I have a check valve that has failed (spa water level equalizing with pool when pump is off) but it looks like i will have to cut the plumbing to install a new one. Does anyone know if I can replace just the spring/o-ring in this type of check valve? If I have to cut the top plumbing how much...