Main information
What it could mean
A fault in a protective device (RCD or breaker) can leave the installation without proper safety, even if the power still seems to work fine.
Safety first
Check the RCD's test button periodically; if it doesn't respond, the installation may not be protected even if it seems to work normally.
Next step
A faulty protective device should be replaced even if it's not causing cuts, since its job is to protect against a real fault.
Frequently asked questions
How do I know if my RCD works properly if it never trips?
By pressing the test button periodically; if it doesn't trip the RCD, it isn't protecting correctly.
Is it dangerous for a protective device to be faulty?
Yes, even if it's not causing daily cuts, it wouldn't protect in the event of a real fault.
How often should the test button be checked?
Regularly, especially if the installation hasn't been checked in a while.
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