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- 18 Nov 2007
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Turn the isolator off and it will allow me to turn the MCB back on. As soon as the main isolator is turned back on it trips all the MCBs again.
The offending MCB is a 6A lighting MCB for one of the lighting circuits. All the lights are off and the MCB will still trip instantly with no load. Had a quick look at the switches and nothing obviously amiss.
Any ideas what could be going on?
Cheers
The offending MCB is a 6A lighting MCB for one of the lighting circuits. All the lights are off and the MCB will still trip instantly with no load. Had a quick look at the switches and nothing obviously amiss.
Any ideas what could be going on?
Cheers