I have a Pentair MasterTemp 250 heater that last year we had issues with the touchpad membrane and circuit board, replacing both fixed all problems and it worked great for the rest of the season.
Fast forward to this year... the guys opening the pool (this past Thursday) turned on the heater, let it run for ~1 min and shut it off. We've had rain for a few days, so today is the first day since then that we've gone to turn it on, except it won't turn on. I turned off power to it for about 20 seconds then turned it back on. The display showed "128" and "r13" which is the programming/start-up sequence if I understand correctly, but after that the display just goes blank and doesn't respond to any of the buttons. Also, none of the lights (service heater, etc) are lit up.
What should my next trouble shooting step be? Are there any test procedures I can perform to determine what the other problems are? I'm looking into seeing if I can get the membrane and circuit board covered under warranty just in case that is the issue.
Thanks for any help and advice!