Pool and Spa
Questions about Pool Repair? Ask an Expert Online.
It sounds like you have a dead short it sounds like you have a dead short in the light or a bad transformer. I would unplug the light from the circuit board then reset breakers to get power back on and if the spa runs ok then the light is bad and replace the light assembly. Check the fuses on the circuit board if the spa will not power up as you may have blown a fuse on the circuit board.