Quadra Fire 1200i - Convection Motor

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arking1

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May 29, 2008
19
Long Island, NY
I have burned about 3.5 tons of pellets with this stove with no issues and I have done the maintenance recommended in the owners manual. Now I am having a problem with the convection motor either not coming on at all or turning on and off when the stove is running. Sometimes the only way I can get the convection motor to come on is to turn the stove on high, but even then it will run for a while then shut down. Any ideas to solve this problem would be greatly appreciated.

Thanks
 
Check all your connections including how the computer mounts.

Do you have pets in the house? Have you cleaned the fins in the blower?

Eric
 
arking1 said:
How do you vacuum the fins on the motor? The electrical connections all look good.
Click to expand...

Use a paint or tooth brush to get anything off them. Unplug the unit and disconnect and reconnect all the connections, do not go by "looks".

Eric
 
It definitely sounds like an electrical problem. Clean fins or not, once the blower is running, dirt isn't going to cause it to shut-off. If it were the combustion blower, one could wonder if it was getting shut down by a malfunctioning heat sensor, but convection blowers don't have them, sooooo??? Must be a short or bad connection, which possibly could be inside the blower itself since it is an electrical device.
 
arnash said:
It definitely sounds like an electrical problem. Clean fins or not, once the blower is running, dirt isn't going to cause it to shut-off. If it were the combustion blower, one could wonder if it was getting shut down by a malfunctioning heat sensor, but convection blowers don't have them, sooooo??? Must be a short or bad connection, which possibly could be inside the blower itself since it is an electrical device.
Click to expand...

Convection blowers are also thermally protected on a very large number of stoves. They will thermal off if the air inside the shell of the stove exceeds the rating of the motor as well as if the bearings overheat.
 
We had issues with the #1 snap switch on the 1200i. They seem to get erratic after a season or two. If the heat exchanger is nice and clean, that is the first thing I'd check. I think I went through 3 of them in 5 years. The rest of the stove was fine and if we kept it I was going to seek out a heavier duty switch.
 
BeGreen said:
We had issues with the #1 snap switch on the 1200i. They seem to get erratic after a season or two. If the heat exchanger is nice and clean, that is the first thing I'd check. I think I went through 3 of them in 5 years. The rest of the stove was fine and if we kept it I was going to seek out a heavier duty switch.
Click to expand...

I'm confused. you're saying you went through 3 snap switches on your convection blower? Why would a convection blower have a snap switch? Mine doesn't. It's the original first generation design but I can't think of any reason why one would be needed.
 
arnash said:
BeGreen said:
We had issues with the #1 snap switch on the 1200i. They seem to get erratic after a season or two. If the heat exchanger is nice and clean, that is the first thing I'd check. I think I went through 3 of them in 5 years. The rest of the stove was fine and if we kept it I was going to seek our a heavier duty switch.
Click to expand...

I'm confused. you're saying you went through 3 snap switches on your convection blower? Why would a convection blower have a snap switch? Mine doesn't. It's the original first generation design but I can't think of any reason why one would be needed.
Click to expand...

There are 3 snap discs on the CB 1200, all tell the stove when to do various things, based on the temperature of the stove. (i.e.- Turn on Convection blower, turn off convection blower, shut down, etc.)
 
BeGreen said:
We had issues with the #1 snap switch on the 1200i. They seem to get erratic after a season or two. If the heat exchanger is nice and clean, that is the first thing I'd check. I think I went through 3 of them in 5 years. The rest of the stove was fine and if we kept it I was going to seek out a heavier duty switch.
Click to expand...

BeGreen is correct. The #1 snap disk controls the convection fan cycling. Disconnect the two wires from the #1 snap disk and place a jumper wire between them. The convection fan should come on AND stay on (ie. no cycling). If the fan does come on and stays on, the issue is with the # 1 snap disk as stated above.
 
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