Our electric Rangemaster 110 has developed an intermitent problem with the fan operating when the oven is switched on, sometimes it will work straight away, other times it needs to be switched off and back on a number of times. Not meaning to be sexist but my wife may not be aware of the fan not running or it may stop running whilst in use with obvious consequences for the heating element. I have found the part that I think needs to be replaced (fan motor and housing) on Rangemasters site. Does anyone have an idea of how easy or difficult they are to replace i.e. an average DIY guy?
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Being a range hood & subjected to cooking fats etc. It might be gummied up around the fan and just require cleaning!
But.... you said it was humming and there is a capacitor close by.
Then it's probably an induction motor thats not getting kick started by the Cap. While it's humming, use a finger (or stick) to push start in one direction or try other direction. If it spins up and stays going.... you've found the problem. The Cap is not kick starting in the right direction. Remove the Cap (with AC Disconnected) and check the values to get a similar replacement.
Check to make certain that there are no obstructions or objects stopping the fan. Power off the unit, check the fan. Does it spin freely, if not check to make certain that it is not stuck or otherwise stopped. The fan can easily be replaced, but usually needs a service call to do this, be sure to get a quote as the cost may exceed the $$$ to replace the entire device.
The same happened to me. I found a 3-amp fuse which I changed, and now it's ok. I removed the chimney casing and located the electrical connection into the wall. You'll find a fuse unit within the switch which swings out.
In case you are still looking for an answer. The same happened to me.
I found a 3-amp fuse which I changed, and now it's ok.
I removed the chimney casing and located the electrical connection into
the wall. You'll find a fuse unit within the switch which swings out.
I have an old range master 42" vent hood and some of the electric wirer were cut & Im replacing the light switch & fan switch could you please send me the electrical digram so I can reconnect the model 256 120 v 60hz 2.5 amps
I'm not sure if it a regular home range hood but if it is. Check the price of a new one. A regular home range hood cost around $100.00 and a fan motor runs around the same. If it a commercial type is another story. If commercial Heritage Food Service Equipment will have the motor.
Extremely likely the fan motor. get to it then , after removing fan blade,plug it in directly to a 110v outlet ,just for a second to see if it works well( don;t touch it while prefoming this test,only the plug), or jumper out the switch(with electric disconnected) momentairly to see if the fan runs after turning the electric back on.