Why does my RCD keep tripping?
Answer three questions without removing covers or touching wiring. You will get initial guidance and know when to stop handling the installation.
Is there any danger sign right now?
Put safety first before trying to identify the protective device.
What a tripped protective device means
An RCD is designed to operate when it detects leakage current; other devices protect circuits or limit the installation. A lowered switch alone does not confirm the cause. The pattern, affected device and any danger sign guide the next step, but a definitive diagnosis requires measurements.
Frequently asked questions about RCDs
Can I keep resetting an RCD if it trips again?
You should not reset it repeatedly. If it trips again, leave the affected area or appliance out of use when this can be done safely and request an inspection.
Does a tripping RCD mean the RCD is faulty?
Not necessarily. It may be responding to a real leakage fault, damp or a defect in an appliance or circuit. The device itself may also need checking; measurements distinguish the causes.
Can too many appliances trip an RCD?
Excess demand normally operates other protective devices or the power control, although it can look similar to the user. Identifying which device lowered helps orient the case.
When should I call an emergency electrician?
If there is smoke, a burning smell, sparks, electric shock, water near electrical equipment, a hot panel or a risk to people, stop handling the installation and request immediate help.