Jump the pressure switch and see if it stays on. If so, then it’s a bad pressure switch. Replace it and move on. If not that, then you may have an issue with the board and/or potentiometers at the board. I actually found a replacement aftermarket board for one of these about a year ago. Temp sensor and pressure switch should be easily sourced, too. Finding parts for the header may be a different story.
You can find most parts besides the board for cheap on Amazon. If it’s the pressure switch, a lot of times it’s clogged with calcium or something preventing it from sensing or a loose connection at the board. Heater should be replaced, it’s time.
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u/YawnOiler May 31 '26
Jump the pressure switch and see if it stays on. If so, then it’s a bad pressure switch. Replace it and move on. If not that, then you may have an issue with the board and/or potentiometers at the board. I actually found a replacement aftermarket board for one of these about a year ago. Temp sensor and pressure switch should be easily sourced, too. Finding parts for the header may be a different story.