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Lights that flicker or bulbs that keep blowing
Usually a connection, sometimes the bulb, occasionally the supply.
By Joseph Lawrence · 18th Edition (BS 7671) · 3 min read
One light
A bulb that is loose, a dimmer that does not suit LED bulbs, or a tired lampholder. Try a new bulb first.
Several lights, or the whole house
Flicker across the house points to a loose connection at the board or in the supply. Bulbs blowing often is the same story. This is the one worth ringing about, because a loose main connection gets hot.
What I check
The connections at the board, the lighting circuit readings, and the voltage at the supply. If the fault is on the supply side, I tell you who to ring.
