I have a go plus hot tub, I think I’ve fared better than most on here, I’ve had mine 3yrs, me hubby emptied it after the grandkids had been in it. Filled it back up & you guessed it - the heater is not working! The reason I’m posting is because I got an email 2 days ago with a recall notice on some models, a fault that can cause electric shocks. Check your emails. You may have one of the models