Drazice water heater trips the circuit breaker or RCD (residual current device) when heating starts.

Danger: This indicates a potential electric shock hazard. If you are not qualified, call a professional immediately.

Steps (for qualified persons):

• Turn OFF the breaker and lock it out if possible.
• Inspect the terminal area for signs of water leaks, corrosion, or burnt insulation. Dry and repair any leaks before proceeding.
• Disconnect the heating element wires and test insulation resistance between each terminal and the metal flange/tank using a megohmmeter. Replace the heating flange assembly if insulation is low.
• Check the power cable for damage and replace if necessary.
• If the element and wiring are good, the thermostat or control board may be shorted and should be replaced.