4 year old Mini Max Heater comes on just fine but keeps turning itself off ever 10-15 minutes. It fires back up when we turn it back on but it just won't STAY on. Eventually after it cycles a bunch of times we get either the E04 or E05 error code but the 'service guy' says the fan, ignition, board, hoses, etc are all fine. They cannot find anything wrong. Same thing happened with my sisters heater and it turned out to be something wrong in the software. Because hers was still under warranty Pentair fixed it. Mine is no longer under warranty and Pentair customer service is NO help. Can anyone tell me how i can tell (what would some signs be) if it was a BAD PC BOARD? Or does anyone have any other suggestions as to what i can have my service guy check?
I live in Huntington Beach and my pool is salt so there is a LOT of rust and corrosion in the heater. So bad my service guy is afraid to take out the burner tray and clean off any rust/corrosion because it might not go back in correctly...the screws are SO rusted he is nervous that the integrity of what holds it in might just be so rusted and corruded that it crumbles.
Can't believe i might have to get a new heater after just 4 years. Any help would be SO appreciated.
UPDATE:It ran for 24 minutes then turned off with an error code of E05.
I restarted and it ran for 19 minutes and then turned off with an error code of E05.
Then i restarted it again and it ran for 14 minutes and then turned off with an error code of E05.
Then i restarted it again an it ran for 10 minutes and then turned off with an error code of E05.
Does this help indicate what the problem could be? I am told that fan, ignition, hoses are all fine. Could corrusion make it turn itself off?