Hello all, my tub has been out of service for 2 years, just getting it back in shape for the season, I was getting an "OH" on the tub side controller and the water went cold and would not circulate. I opened up the Balboa SP 2000 spa pak, found the temp sender out of the heater. I've just put a identical replacement unit in, filled the tub, I now only get the main 2 speed pump only works on high, the low speed does not work, only a click from the relay.The heater topside light does not turn on.There are no error codes topside, the lights and blower work...any ideas???
