While you wait for answers, we may have found some information which could help you.
Click here for Hood Hygena WorkHygena Cooker hood APM2591?
how to tell which part has failed on Hygena APP2420 cooker hood?
Hygena APP2420 fan cuts outer after 5 mins?
How can i fix the cooker hood Hygena PCB for APP2440?
my hygena app2440 cooker hood needs new button control unit ?
hygena app2410 cooker hood?