A power trip at home caused by the turning on of the electric water heater is usually related to electrical wiring/ electrical supply problems that fall under these common causes:
- Wrong wiring connection, or worn/damaged cables that has fused or come into contact with each other, leading to a short circuit
- Failure to wire to a dedicated water heater power point/ front flex outlet. A 3-pin socket outlet should not be used because its power rating is insufficient to support water heater.
- Sharing of the power point/socket with other electrical appliance(s) resulting in electrical overload. The power point for water heater should never be shared.
- Faulty heater switch / power point.
Please consult a Licensed Electrician to check and rectify any electrical problem. If the power trip persists even after an electrical inspection, kindly contact Viessmann Service Support to check and service your water heater unit.