1. The bathtub is not heated.
Reason: the heating tube burned out, there are traces of breakage, if there is no trace of burning, the effective resistance value can be seen at both ends of the heating tube with a multimeter resistance, if there is no resistance value, the heating tube is damaged, replace the heating tube If there is still a problem, you can check the triode 8050 on the side of the heating relay of the driving board, and replace the 8050.
2. Cooing sound when surfing heats up.
Cause: The pump sucks in impurities, and the rotor blades of the pump are deformed. Elimination method: Take out the rotor of the water pump, clean the inhaled impurities, and reinstall it. If the fault still exists, it means that the pump rotor is faulty, and the pump rotor needs to be replaced.
3. The bathtub does not surf.
Cause: Damaged water pump. Replace the water pump, if the water pump control triode 97A6 is damaged, then replace the 97A6.
4. bathtub repair - remote control failure.
Reason: The remote control is out of power, replace the battery.
