I'm wondering if anyone has seen anything like this before.
My Hayward H-Series (electric ignition) heater will ignite, heat for a while, and then shut itself off. After a few seconds it cycles again; it ignites, heats for a minute or two, then shuts off. After doing this a third time, it quits and reports an "IF" error, meaning "ignition failure". However, it didn't actually fail to ignite... it's like it's just not realizing that it succeeded in igniting.
It sounds like it might be a problem with the sensor that tells it whether it's ignited. But, it gets a little weirder. It heats continuously, just fine, until the water reaches ~70 degrees F. Then, it starts with this problem.
So, I wonder if it might be related to water temperature somehow, or gas pressure, or even water getting into the wrong place. Any idea what might be causing this?
Thanks in advance!