Fan motor

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RedDirt85

New Member
Mar 29, 2020
5
Michigan
I’m new to wood boilers and I’m wondering if my fan is bad. Starting yesterday when the water temp drops to its normal turn on temperature the fan cover opens and there’s a hum of power but the fan doesn’t spin. I saw something about a snap disc on another site but I can’t find it. Thanks for any help.
 
What brand of boiler?
WoodMaster, there’s no model number on it.
[Hearth.com] Fan motor
 
If you controller is lit up it’s not the limit switch on those. Did you try tapping the motor? The humming you hear could be the solenoid opening too and not the motor running.

unplug it and check for power at the fan motor. If there is power you have a bad motor. If not back trace to the problem.
 
If you controller is lit up it’s not the limit switch on those. Did you try tapping the motor? The humming you hear could be the solenoid opening too and not the motor running.

unplug it and check for power at the fan motor. If there is power you have a bad motor. If not back trace to the problem.

It’s an older one. It doesn’t have an ETC if that’s what your talking about. Thank you for your input.
 
Some of those old fans had oil ports that needed yearly oiling or they'd lock up.