Main information
What it could mean
A home completely without power usually comes from a general cut at the switchboard (RCD or main breaker) or, if it also affects neighbours, a supplier cut.
Safety first
Check first whether the cut also affects other homes in the building before checking your own switchboard.
Next step
If the cut is exclusive to your home, the source is the main switchboard or your own incoming connection, worth checking to locate it.
Frequently asked questions
How do I tell a general supply cut from one in my home?
Check whether it also affects neighbours or just your home; if it's building-wide, it's usually the supplier.
What should I check first in my own switchboard?
Whether the main switch and RCD are normally reset, without having tripped.
Could it be a fault in my home's incoming connection?
Yes, one of the possible causes if the cut's exclusive to your home and the switchboard seems fine.
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