Yesterday we changed our old bathroom extractor fan for a new one. Unfortunately, althought it works perfectly, it won't go off! It's not a timer model, so is not set to a timer, but should come on and off with the bathroom light. It just will not go off! Any ideas please?
Help - bathroom extractor fan on 24hrs!
- Thread starter poonum
- Start date
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You've connected it to a permanent live.
Was the previous model a timer version? If so then swap the live conductor for the spare (switched) one that you must have disconnected.
Was the previous model a timer version? If so then swap the live conductor for the spare (switched) one that you must have disconnected.
yes the previous one was a timer model, so do we need to buy another of these? or can we use a part from the old one?
what is the live conductor and what is the spare?
do you think we should just pay to get an electrician round or is it simple enough for us to fix?
what is the live conductor and what is the spare?
do you think we should just pay to get an electrician round or is it simple enough for us to fix?
Your old extractor would have been connected to a switched live and a permanent live. The permanant live powers the fan when the switch is turned off for certain amount of time. Since your new fan doesnt have a timer and is staying on all the time its probably that you have connected it to the permanent live instead of the switched live.
As dingbat said above just swap the live and switched around....easy enough to do.
Cheers
As dingbat said above just swap the live and switched around....easy enough to do.
Cheers
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The timer fan has a neutral and switched live (switched via the lightswitch) and a permanent live, which powers the timed overrun (because otherwise it would just stop when the light was switched off)
The new fan you've got does not require the permanent live, which is what you've connected to it.
There must have been three conductors connected to the old fan. (neutral, live, switched live)
The new fan only requires two. (neutral and switched live)
You've connected up neutral and live when you need neutral and switched live.
If this isn't enough information then you probably shouldn't be doing this yourself.
The new fan you've got does not require the permanent live, which is what you've connected to it.
There must have been three conductors connected to the old fan. (neutral, live, switched live)
The new fan only requires two. (neutral and switched live)
You've connected up neutral and live when you need neutral and switched live.
If this isn't enough information then you probably shouldn't be doing this yourself.
You should ideally disconnect it at the other end but, failing that, terminate it into a section of terminal strip (choc block) inside the fan body.
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