Replaced extractor fan but still no joy

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Chris Woodcock

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My daughter had moved house and the fan in the shower room wasn't working. The light in the room works OK and the isolator has power to it and is on. Checked power to the fan with a meter and L to N shows 240 as does L1 to N. It was wired exactly the same as the bathroom fan which works fine. I therefore thought it was the fan so got an exact replacement. Same problem, not working.
Any more thoughts out there please?
 
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Should work then.

Can only think of going back to basics, to confirm which wires definitely are L, swL and N - but it sounds like you have done that.

Any wires broken anywhere, that aren't obvious?
 
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Could be a high-impedance connection somewhere. Your meter I assume is a digital one? That draws so little current that it will see 240V. As soon as a real load is connected the voltage drops. Have you tried measuring the voltage with the fan connected?
 
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Seems strange.
Do you still get 240V between N and L1 when you pull the light switch cord?
 
Try putting the cable into a lamp holder or similar - something that's easy to apply a load to - make sure swL or L is made safe when you do and see if it lights a 60W lamp say.

What others are trying to get at is, if you have a loose connection somewhere, it will still show voltage with a meter, but once you apply a load, that voltage falls away. A lamp is a good indicator of this happening in absence of more advanced test equipment.
 
Iggifer said:
What others are trying to get at is, if you have a loose connection somewhere, it will still show voltage with a meter, but once you apply a load, that voltage falls away.
Click to expand...
Indeed. However, my understanding is that the OP has measured voltages, and found them to be 'present and correct', with and without the load (fan) connected (see post #7).

Kind Regards, John
 
EFLImpudence said:
Many an hour wasted over duff new products.
Click to expand...
Indeed. One has to say that, on the basis of everything we've been told, the OP seems to have done all the appropriate testing, leaving little other than the new fan to point a finger at.

Iggifer's suggestion of connecting a load such as a light bulb in place of the fan is therefore certainly the next thing I would do - just to convince myself that my meter was not lying to me . [ if there really is 240V between N and both L and L1, yet the fan is not working, it would obviously seem that nothing other than a faulty fan could be the explanation.]

Kind Regards, John
 
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