I have a Jacuzzi Z135 with a Balboa spa pack. 2 weeks ago, the display said OH. I powered down the tub for a few minutes, turned it back on and th error cleared itself. However, the pump will not come on. The switch in the control panel works, (i.e. lights etc) but nothing for the pump turns on. There is a few clicking noises coming from the board but as before, nothing works.

Today, I replaced the high limit sensor, filled the tub, and turned it on. Still the same problem. Only now, after a few minutes of it being on, the whole unit shut off and I can't get anything to come back on. Reset the breaker etc, and nothing. Can anyone help please??? Thanks in advance!

Ryan

Did you have voltage at the motor? It actually sounds like you might have an incoming power issue, check your main power connections in the pack.

Power is going to the pack. I jumped the hi pump realy with a power lead and the pump started, but nothing else works. Someone told me that it's a bad ciruit board. Is that possible?

I have a similar issue with my tub right now. Toss the breaker on and the panel immediately goes to OH. hit any button and the relays click, pump comes on for 2 seconds, then off and OH flashin again. Replaced the sensors with no change. I'm on the hunt for a new board only because I have no troubleshooting manual or ideas. I have no problem with replacing IC's or relays on the board but I don't have measurements or any place to buy replacement parts.

Help?!