Have the usual “long cycle - timer stuck at 1 minute” problem. Thanks to all the info on the board, have been able to isolate the problem to my control board. Heater, thermostat, and flow switch working fine. The solder joints on the board looked fine. Added a little solder to the high voltage pins but did not fix the problem. Ran a test cycle with a volt meter connected to the heater relay input and got a nice 6.5V when the heater was supposed to go on but no 110 AC going though the relay. De-soldered the heating relay and the contacts are pretty fried inside. The relay is a SHC SRE303006. I have been trying to look for it on the internet but so far no luck in sourcing it. Any suggestions for a replacement or is my only option to replace the burnt relay by buying a $330 control board?
Any luck finding replacement, I have the same problem and need to replace the relay.
Search YouTube for SRE303006.