Purex Minimax 400 Heater won't start


Well-known member
Jan 18, 2011
Houston, TX
Turned it on today and there are 4 LED's. Power, pressure turn on but heat and service do not.
Don't hear the usual clicking and whining to start it up.
Board was replaced in May 19 when the service light was coming on.

We have had a huge rain here, should I wait for it to dry out? Or is this completely unrelated?

Strange it won't turn on but service light does not come on....scratching my head...


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
You need to work through what safety switch is not working like shown in this video...

Also see..

Last edited:
Thread Status
Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.