Not just looking clean, but make sure there's no sticky residue in them, which can be caused by shampoo, hair conditioner and skin lotion. So, first check to make sure your filters are clean. Multiple OH errors will cause the tub to shut down and give you an OHH. The most frequent cause of OHH is bad flow, which is often related to a pump failure.Īn OH error, which is trigged when the temp goes over 112, is often caused by dirty filters. The OHH is an overheat error, meaning that one of the sensors in the heater thinks the spa water has gone above 118 degrees. It usually is caused by the circuit board getting too hot. HOt means the spa thinks it can't turn the pump off.
