The fan or fan and shutters do not work
It is within the warranty period
If the product as been installed in accordance to the fitting/wiring instructions and there is a supply at the fan but it does not work, then return to place of purchase for a replacement.
It is outside the warranty period
Check there is a stable supply to the fan and that the impeller is able to spin freely and there is no blockage within the fan and any duct run or termination.
Check nothing is obstructing the shutters mechanism
Fan works but the shutters are not opening
It is within the warranty period
If the product as been installed in accordance to the fitting/wiring instructions and there is a supply at the fan but the shutters or shutter and fan does not work, then return to place of purchase for a replacement.
It is outside the warranty period
Check there is a stable supply to the fan. If possible, check that there is no obstruction to the shutter mechanism and blades.
How do I clean my fan
The product instructions will normally give guidance on fan maintenance so please check those in addition to the following information.
Otherwise after ensuring that the fan is safely isolated from the mains supply, periodically check the fan is free of any dust/dirt/grease build up using a damp cloth with warm water and a mild detergent.
I need a copy of the fan fitting/wiring instructions
Visit our installation instructions and downloads section at
www.vent-axia.com/downloads/instructions-manuals
I have a query/problem with the run-on timer
The timer does not run-on at all
Ensure the fan has been wired in accordance with the fitting/wiring instructions. Timer fans require a permanent live and neutral and a switch live to operate correctly.
The timer does not time out and so the fan runs on continuously
My fan is controlled from the light switch
My lighting is low voltage or low energy and has its own transformer
Ensure there is both a permanent live and switch live on the fan or transformer controller (where applicable) and that they have been connected to correct way round. See product fitting/wiring for full relevant wiring details.
Some types of low voltage and low energy lighting (mainly older types) can create a high voltage surge at the point the light is switched and this can interfer with and in some cases damage timers in fans. If your timer fan has failed due to lighting type you will likely need to replace it. If placing on the same lighting circuit, your electricial should protect the fan with a supression device such as a Varistor of type relevant to the lighting type.
My light does not have a transformer or is a tungsten filament light bulb
Ensure there is both a permanent live and switch live on the fan or transformer controller (where applicable) and that they have been connected to correct way round. See product fitting/wiring for full relevant wiring details.
My fan is controlled by a switch other than a light switch
Ensure there is both a permanent live and switch live on the fan or transformer controller (where applicable) and that they have been connected to correct way round. See product fitting/wiring for full relevant wiring details.
Can I adjust the run-on timer
Run-on timers can usually be adjusted between approximately 3 - 30 mins (this range varies depending on the fan). See product fitting/wiring for guidance.
I have a query/problem with the humidity sensor
The humidity sensor is not bring the fan on
It may be that the humidity level within the room is not high enough to trigger the fan. Where necessary, with most humidity fans you can adjust the sensitivity of the humidity sensor. See product fitting/wiring instructions for guidance.
Why won't my humidity fan stop running?
If you have a humidity controlled fan which is staying on most or all of the time, then there are a few points to consider before assuming the fan is faulty, as in most cases when we receive calls with suspected fault humidity fans, they are in fact operating exactly as they should be, and many are returned when there's nothing actually wrong with them.
Firstly, a newly installed humidity controlled fan will normally run for an average of half hour whilst the humidity sensor acclimatises, this is completely normal, so please leave the unit to allow it time to settle down.
Where necessary, with most humidity controlled fans, you can adjust the sensitivity of the humidity sensor. To make the fan less sensitive to humidity, you will need to adjust the sensor towards the maximum set point. Do not expect to see an instant reaction after adjusting the sensor, and please remember to leave the fan for at least half an hour to acclimatise. See the product fitting and wiring instructions for further guidance and before carrying out any maintenance or adjustments on your fan you should ensure that you have safely isolated it from the mains supply.
If your humidity controlled fan has a pull cord, it is also possible that somebody has pulled the cord to the override position, in which case the fan will run continuously until switched back to the sensor mode. Some but not all fans with a pull cord will have a neon light to indicate when the fan has been pulled to override.
Lastly, a humidity controlled fan is looking at the ambient humidity level to activate/deactivate the fan, and so it is important to remember that normal ambient humidity levels on a given day can trigger a humidity fan in just the same way as humidity generated by steam from the bath/shower room or Kitchen if the humidity level rises above the set-point. In addition, new build properties, as well as refurbished and redecorated properties will go through a drying out stage during which time the humidity level within the room will likely be high enough to trigger the fan.