AddzyM96

Also 3 heaters wouldn’t all have bad heating elements surely?

Just 120v to each post. I’ve had the hot tub mechanic round and he has tried to repair/fault find it and states ‘it’s getting power just no amps. He reckons an earth fault with the pcb but doesn’t know for sure

My heater died early last month. Kept tripping the electrics. I have since replaced this with the exact same heater (LX H30-R1). The hot tub stopped tripping the electrics but no heat was been produced. Tried 3 heaters now (including one from local repair mechanic) the heater is pulling 240v however it is not drawing any amps at all and still no heat. Circulation pump still working fine and not air locks. please help, could this be a PCB fault?