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check the vent is not restricted. I had had one where the installer accidentally stopped the butterfly flap from opening with a fixing for the flue. Also one where builder squashed the pipe in the roof. Another where there was no pipe from hood, not moving air at all,just a noise maker!
if both fan and light have quit working then you have an electrical supply problem. start with checking for thrown breakers in the breaker panel. if none are tripped then you have a broken wire or a wire no longer making a good connection. try twisting the wire nuts tighter were it wires in above it
I have the same probelm. My control board is blown. You can see that easily if you open upm the case on top of unit in tehh cabinet in a smaller metal box. If it is blown like mine it will be very obvious.
check to see if the dapper is opening. that is piece of metal in the flue that keep the air from the outside coming in or check if there is something plugging the top part of the flue on the roof. plus you can go roof and look down and see if there is anything blocking it.
FAN AND LIGHT DOES NOT WORK my
zephyr typhoon stopped working. Neither light not the fan come up. I am
sure there is power going into the unit. I turned on the light one day
, the light cam on and suddenly went away. From then even the fan
stopped working. any information on what happened is appreciated.