HI I have had a problem for a couple of years with my Hayward millivolt heater. The burners won't stay lit consistently. When I bypass the pilot generator the burners light, but when I remove the jumper, the burners stay on for a while, or shut off immediately.
I have replaced the gas valve and the pilot generator, checked all connections, switches, pressure switch, limits, etc. and all is well.
Pilot stays lit no problem
The heater worked flawlessly for 5 years and started getting cranky a couple of years ago. I replaced the gas valve last summer on the advice of a gas repair guy, but that didn't help
This year I replaced the pilot generator, thinking that this was the last piece that could possibly be causing the problem
Now I am at a loss for next step in troubleshooting
This is a very simple heater so I would think that the fix would be simple too but it's evading me
Hoping for a lifeline! Any assistance MUCH appreciated!