Bathroom extractor fan replacement. Can this be wired?

[devs]

Hi guys, I wanted to replace an extractor fan in my bathroom pictures below. the current set up along with the new extractor. I have only two wire connections. Can this be made to work? The current extractor simply comes on when the light is on.

Many thanks!

 

[Scally-Ho]

The basic XF100 does not have a timer, therefore connect L&N to the two terminals 1 & 2 and your new fan will run for as long as the light switch is in the on position.

 

[endecotp]

Hi guys, I wanted to replace an extractor fan in my bathroom pictures below. the current set up along with the new extractor. I have only two wire connections. Can this be made to work? The current extractor simply comes on when the light is on.

And goes off when the light goes off? Your current fan has a run-on timer and appears to be wired up to use it. If that isn’t doing anything, maybe that’s because the knob that adjusts the delay is set to minimum, or maybe it’s because the connections at the other end of that wire are wrong.

Anyway, yes, you can replace your timer fan with the non-timer fan. Connect neutral (blue) to neutral, and switched live (black) to what is oddly labelled “permanent live” on the new fan. Neatly terminate the other live (brown), don’t chop it off.

Why are you replacing it?

 

[devs]

Perfect thanks for the help. It’s being replaced because it’s noisy and running weak. Thanks

 

[devs]

And goes off when the light goes off? Your current fan has a run-on timer and appears to be wired up to use it. If that isn’t doing anything, maybe that’s because the knob that adjusts the delay is set to minimum, or maybe it’s because the connections at the other end of that wire are wrong.

Anyway, yes, you can replace your timer fan with the non-timer fan. Connect neutral (blue) to neutral, and switched live (black) to what is oddly labelled “permanent live” on the new fan. Neatly terminate the other live (brown), don’t chop it off.

Why are you replacing it?

Hi I’ve just had another go at this (actually wired incorrectly before seeing your message) just swapped out to the black and it’s still not running for some reason. Trust there’s nothing further I can try prior to buying another? Thanks Steve

 

[endecotp]

I’m sure there is lots you can try before buying another!

What exactly have you done so far?

 

[devs]

Great. I started with the brown to live then seen your message and switched out to black to live. Neither are working unfortunately.

 

[endecotp]

And how is everything else connected, etc.? “Not working” doesn’t give much for us to go on. Do you have a multimeter or any other test equipment? Do you know where the other end of that wire goes?

 

[Murdochcat]

You say the original one is “running weak” - how long is the vent pipe AND do you have sufficient air flow under the door?

 

[Harry Bloomfield]

If that supply wiring is confirmed to be valid, and the timer pcb is still functional - then it might be possible to transfer the pcb across to the new fan.

 

[devs]

Evening guys and thanks for the help. Swapping the PCB was a great idea. I’ve just tried that, but unfortunately it did not work. I can only issue that the fan is faulty or fried. I’ll swap everything back to its original state tomorrow to see where I’m up to. I do own a multimeter, however, I’m not very familiar with using it. Thanks, Steve.

 

[endecotp]

First, see if the old fan still works (noisily) if you reconnect it.

 

[devs]

First, see if the old fan still works (noisily) if you reconnect it.

Yes thanks, I’ll come back in the morning

 

[devs]

Yes swapped back to the noisy original and it is running fine. I purchased the new one via the marketplace a while ago and it must be junk

 

[Harry Bloomfield]

Yes swapped back to the noisy original and it is running fine. I purchased the new one via the marketplace a while ago and it must be junk

For test purposes only, I keep a 'suicide lead' around...

Just a 13amp plug, a three core flex, with three connectors - L, N, and E, at the end. It enables doubtful items, like the above, to be bench tested.