If so please carefully follow this reset procedure: If you've followed the above and the Airflow iCON HTM humidity sensor isn't behaving as it should then it may need to be reset. In most cases, the best option is to turn the humidity knob fully anti-clockwise (90% humidity) and only reduce it if the fan isn't coming on quickly enough for your liking when using the bath or shower. Screwdrivers are not recommended and have been known to break the dial. Note: Please use the little, black plastic adjuster that comes with the module to change the settings. Turning the humidity knob fully clockwise sets the humidity level at 40% - This humidity level could represent a normal summers day so your fan could run all the time at this setting (Airflow get many calls claiming that this is a fault when actually someone has turned down the humidity level thinking that they have turned down its sensitivity to humidity) Turning the humidity knob fully anti-clockwise sets the humidity level at 90% - Use of a bath or shower would usually cause the humidity in the room to rise above 90% and so should turn the fan on until the humidity level has dropped back below 90% In order for the fan to operate properly the humidity setting on the module must be set correctly: The fan will switch off automatically once the timer has run its set time (unless you keep pulling it of course) (adjustable 5 - 45mins) - Recommended 10-15 minutes. Repeated pulling will reset the timer to start again. Note: Pull cord will not 'click' (as it is electronic) and is designed to switch the fan ON only. If the pull cord is cut off then the fan will operate on humidity only. The fan can also be switched on with the local pull cord on the fan. The pull cord can be cut off if required.įan operation when wired using just L & N: Fan operates on and off in conjunction with its humidity setting (adjustable on the control module). The fan can also be switched on with the local pull cord on the fan and will run until the timer expires. The fan will also switch itself on and off in conjunction with its humidity setting (adjustable on the control module). This is quite handy as many people who are swapping out an existing fan find that they have a permanent live only.įan operation when wired using both a permanent and switched live: Fan operates with the switched live (usually wired into the room light) and then runs on for a preset time (adjustable on the fan control module) after it has been switched off.
The module can be wired either with OR WITHOUT a switched live depending on the functionality you require. Humidity settings on extractor fans seem to be a common issue, so I thought I'd offer a few pointers on setting up and troubleshooting the Airflow iCON HTM humidity module. Posted by Robin Laverick on June 3, 2010 in Ventilation & Tips & Resources Airflow iCON HTM Setup & Reset
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