You can perform the following 3-step test to ensure your RCCB or ELCB is in working condition.

• Test the circuit breaker by pressing the ‘Test’ button. The electrical circuit breaker switch will flip down and cut off all electricity supply in your home. If the switch does not flip down, it is faulty. Homeowners should contact a Licensed Electrical Worker (LEW) for assistance.

• Test all light switches and power sockets in every room with the electrical circuit breaker switch flipped down.

• The circuit breaker is in working condition if all lights and power sockets do not turn on when the switch is flipped down. If any light or power socket continues to work when the switch is flipped down, your home is not fully protected by the circuit breaker. Homeowners should contact an LEW for assistance. If the circuit breaker is in working condition after completing steps 1 and 2, flip up the electrical circuit breaker switch to restore electricity supply. Switch on the lights and appliances that you need.

For a detailed step-by-step guide, please read the RCCB Safety pamphlet. It is good practice to test your circuit breaker regularly to ensure that it is in working condition.