
The RCD (trip switch) has tripped and won't reset
- Switch off all the small circuit breakers in the fuse box.
- Switch the RCD back on. If it stays up, switch the circuit breakers back on one by one.
- When switching one on makes the RCD trip again, the problem is on that circuit.
- Unplug the appliances on that circuit and try again: if it now holds, the culprit is usually an appliance.
If it trips even with nothing plugged in, there is an earth leakage in the installation: leave it off and request a quote.














