Cooker extractor hood fan not working (DIY diagram within)

[j4g3d]

Hello guys,

Avid reader of DIYnot but only just signed up, and i have my very own question that if i may i will put forward to any experts who can help me here.

Right so my extractor hood is 13 months old (just out of warranty). The fan motor stopped working. So i want to try to wire the fan motor up to the light switch to rule out the fan switch being faulty. Or alternatively which wires do i use to test the fan motor by bypassing the switch?

Can someone help me out here? i have drawn up a diagram of how its all wired up (please do not laugh hehe).

Looking at the diagram i am tempted to remove the black cable from the choc block and place it with the brown (live). What do you think?

Appreciate your help.

my DIY wiring diagram....
http://s88.photobucket.com/user/j4g3d/media/WIRINGHOOD_zps019d6c45.jpg.html

 

[bathjobby]

Thats not the logical way to go about testing/diagnosing the problem. Plus, if you can't figure out how to do what your attempting, with live mains, leave well alone.

 

[j4g3d]

Thats not the logical way to go about testing/diagnosing the problem. Plus, if you can't figure out how to do what your attempting, with live mains, leave well alone.

Letme add the other method i have tried with the multimeter

The light switch terminals BROWN + WHITE (grey) get 240v on the light switch terminal

WHITE (Grey) doesnt touch the fan switch terminals. Only BLACK, RED, BLUE, BROWN does. SO if i try BROWN + red or brown + other colours it dont get any Voltage.

If i try BROWN from fan switch to WHITE (grey) on the light switch it gets 240V if i try red, blue or black from fan switch to white(grey) it gets 240v.

So with this method am i safe to say the motor is dead?

I want to physically verify this, am i safe to say BLACK, RED AND BLUE are fan speed cabling? and that i could remove any one of them from the choc block and place onto the BROWN and that should bypass the switch and therefore soon as i plug the mains in it should turn the fan on instantly? i just want to test it for a split second......