1. Fault in the on/off switch.
Solution: We measure it with a multimeter and replace it.
2. The protection relay may have been tripped (if present in the model).
Solution: Reset it by pressing the start button again. If it doesn’t work, replacement is required.
3. Short circuit in the pressure switch.
Solution: Clean it thoroughly and try again. If it doesn’t work, replace it.
4. Short circuit in the heating element.
Solution: Replacement.
5. Short circuit in a water solenoid valve coil.
Solution: Replace the coil and the valve.
6. Short circuit in the electronic circuit board.
Solution: Electronic inspection and repair, or replacement.
7. Pinched or damaged power cable.
8. Water leakage from the boiler at an electrical connection point.
