Pentair (PacFab) MiniMax 100 Propane


LifeTime Supporter
May 29, 2014
Pittsburgh, PA
I opened up my pool this weekend, but when I went to turn on the heater, I could not get it to work. The pilot light came on (once using the igniter, and one time I had to manually light the pilot). However, I could not get the heater to turn on.
- Pump is running.
- Lit pilot. The pilot light looks strong.
- Pushed heater "button" to On.
- Turned thermostat slowly. I can always hear the "click", and typically the heater fires right up after that, but not the case this year.

Any thoughts? I do not have any experience or knowledge regarding heaters, but if it is something that I could try before contacting a pool store to replace a part of two, I'm game. I will just need the advice in simple terms. I have attached a few pics as well of my unit. It is old, so I don't know if replacement may be the answer, but not rushing to that conclusion!

Based on my review of a few other heater questions on the forum...
@Pool Clown

Thanks in advance,


Pool Clown

In The Industry
Sep 5, 2008
Silicon Valley, CA
If you dont hear the click from the thermostat, then it is the thermostat control. Whole heater in general looks quite weathered. I may question investing any money to fix.

And then there's the rust...