What Our Customers Are Saying


If there is any failure in the Vent Axia extractor fan, then the possible problems may include a power cut-off, tripped overload, impeller jamming, or wrong settings on the humidistat or timer. With the help of these four checks, one can solve most of the problems of the Vent Axia fan.
Always first test the power source at the isolator/fuse as the main reason why your fan will fail to work properly is due to a tripped circuit which leads to the malfunction. Check if the thermal overload has tripped especially if your fan is working non-stop in a poorly ventilated area. Test if there is any jamming in the impeller. Also, test if the humidity level and timing set for the fan is suitable for the current environmental conditions.
A problem where the fan hums but does not spin is usually due to a seized motor bearing or a blown-out capacitor and would probably need motor replacement. When the fan is running but not producing any air flow, the reason could be an obstruction in the grille, duct or impeller and will be solved by cleaning. A problem with the fan running but switching on and off without warning is probably a setting of the humidistat or timer and not a motor problem. If the fan trips the RCD, it is most likely due to wiring problems or a faulty motor winding and must be isolated from the mains.
iACS stocks EBMpapst replacement motors and fan components for commercial ventilation systems, alongside the wider range of controls and spares used across air handling installations.
The fan needs to be isolated from the supply, left for some time to let the thermal overload reset, and then the supply should be restored to see if the fan works properly. In case the fan trips again, do not reset it over and over again, as it most probably is a real fault.
Where a Vent Axia fault turns out to be a speed control issue rather than a motor or capacitor failure, a replacement fan speed regulator is often the simplest fix, and iACS stocks single phase regulators and three phase regulators for commercial ventilation systems.
Should all the above tests fail to pinpoint the problem, it may be due to a faulty motor, capacitor or controller that must be replaced and not repaired. In cases where the system is not controlled through fan speed regulators but with an integrated fan speed control system, it is advisable to first test the regulators.
Some of the typical reasons include loss of power, overload tripping, impeller jamming, or improper humidistat/timer adjustment.
Ensure the fan is isolated from the power supply, give it some time to rest and then provide the power back to it. Should it trip immediately after providing power again, consider it as a genuine problem.
Yes, in most cases the Vent Axia fan motor can be replaced separately from the whole fan.