Split from Pentair 250M Minimax Heater Zea3
Hi there. resurrecting an old one because I have almost the same problem, and am not so good with a multimeter.
Specifically, the heater will sometimes (once every four or five times I throw the switch) engage, but will not stay lit for more than three seconds.
I have the Minimax 250M. New pressure switch. I put my meter on the PP leads on the red box thingy, and the only thing I can say for certain is that when I turned the heater on, the meter reading went from some number or other down to zero, whether it fired up or not.
Do I need to put the meter on a different part of the PP thingy?