I have an old Quadrafire Castile that has been very reliable for many years. Last week I fired it up and it ran for normal for an hour or two but it began making a terrible scratching noise from the back, around the blower motor. I switched speeds from high to medium and it settled down and ran for another 30 minutes before the noise returned, almost like an electrical noise, and the fan would not put out any air. I ordered a new blower motor assembly and installed today but the noise is still the exact same and the fan will not run on any speed. The noise only starts when it is up to temperature and the blower kicks in. It almost sounds like a shorted transformer but the new blower motor has a built in transformer. I have thoroughly cleaned it and vacuumed behind the removable grates, all around the combustion blower. It lights up quickly when started and holds a nice steady flame, just no hot air blowing out of it. Any advice or troubleshooting steps would be greatly appreciated.
Quadrafire Castile Noise
- Thread starter TG9000
- Start date
-
Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.
We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.
We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
I think what you are referring to as a transformer is the motor windings.
Try unplugging the leads at the motor and take a voltage reading on them. You should be seeing around 120 volts ac. If it is not around 120, try testing voltage on one lead to the frame, you should either be 0 or 120, then try the other lead, it should be the 120 if the first one was 0 or it should be 0 if the first was 120.
Try unplugging the leads at the motor and take a voltage reading on them. You should be seeing around 120 volts ac. If it is not around 120, try testing voltage on one lead to the frame, you should either be 0 or 120, then try the other lead, it should be the 120 if the first one was 0 or it should be 0 if the first was 120.
You're correct, I assumed it was a DC motor, I am going to tear the unit down tomorrow and check voltages and the snap discs. I've attached the manual for the heater.
It seems that something feeding the motor has malfunctioned since it has the same noise as before.
I just bypassed snap disc 1 and the blower works perfectly, I guess the snap disc is failing and making a horrible sparking noise. I ordered one on Amazon, probably can't find one at a local shop. Does anyone know how to check the snap disc with a multimeter, what ohms it should be?
A Snap Disc is just that ON/Off When it reaches a certain temp it comes on
when it cools down it turns off. Just like a light switch
when it cools down it turns off. Just like a light switch
Similar threads
