Main information
Don't self-diagnose it
A moisture-related fault is a safety signal wherever it comes from. The exact cause can't be worked out from here: only by checking it in person.
Safety first
Don't use any electrical point that's been in direct contact with water until it's checked and, if needed, dried or replaced.
Next step
As well as repairing the affected point, it's worth identifying the source of the moisture to stop the fault recurring.
Frequently asked questions
Does moisture always cause permanent damage to a fitting?
Not always; depends on exposure and time, but worth checking before using it again.
Should I also find the source of the moisture?
Yes, if the original leak or condensation isn't fixed, the fault can recur.
Is this more dangerous than other electrical faults?
Water increases electrical risk, so this type of fault is handled with extra care.
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