Quadrafire mt vernon conv blower jam

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Well, it's now day two and the convection blower shut down for about 10 seconds and started back up again. First time I have noticed it. I will try to locate a dt thermocouple tomorrow. Thought I had it fixed......
 
Well, it's now day two and the convection blower shut down for about 10 seconds and started back up again. First time I have noticed it. I will try to locate a dt thermocouple tomorrow. Thought I had it fixed......
Where does the end plug in? I know the one end attaches to the drop tube just not sure of the other.
 
Through the harness eventually ending at the control board. There should be connector at the end of the wires
 
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At about 11:30 last night I found some sandpaper and really cleaned where the drop tube tc attaches with the wing nut. It started up and ran last night and all day today. Fingers crossed that this fixed it! I originally just scraped the area with a screwdriver but going back to what Kap said about cleaning that spot, I really cleaned it good.
So the conv jam came back. I unplugged it , it goes to auto clean and then it shows the top and front front door open and wont start. It is 2 here right now and no other means to heat. Anyway to jump things out? I need help!!
 
Unplug stove again and plug back in. Pull face off wall control and put back on. If that don't work, unplug stove, turn gray dial to 1. Plug stove back in, wait for it to do an auto-clean, then unplug again, and turn back to 0. Plug back in and see how it goes. If you have any downloaded fuel tables, it will delete them and go back to factory. Let us know. kap
 
Unplug stove again and plug back in. Pull face off wall control and put back on. If that don't work, unplug stove, turn gray dial to 1. Plug stove back in, wait for it to do an auto-clean, then unplug again, and turn back to 0. Plug back in and see how it goes. If you have any downloaded fuel tables, it will delete them and go back to factory. Let us know. kap
So I checked all the wires and could not find anything wrong. I noticed if I opened the front door and the top, and then closed the top, it only showed the front door open. I closed the front door with the top open and then closed the top and it went in to startup mode. It seemed to take forever for the pellets to light (i thought the igniter went out too) and then all of the sudden it started up and has been running for about 45 minutes. I am worried what it will do when it shuts down for auto clean. If it does it again i will do the steps you said Kap
 
So I checked all the wires and could not find anything wrong. I noticed if I opened the front door and the top, and then closed the top, it only showed the front door open. I closed the front door with the top open and then closed the top and it went in to startup mode. It seemed to take forever for the pellets to light (i thought the igniter went out too) and then all of the sudden it started up and has been running for about 45 minutes. I am worried what it will do when it shuts down for auto clean. If it does it again i will do the steps you said Kap
Oh, what gray dial?
 
You may want to check hopper lid an door sensors as they may need to be adjusted for a better connection. The gray dial is on the control board. kap
 
I would be looking for a back-up heat source too. Can't depend on just a stove.
 
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So, how did it go? kap
 
So replaced dt thermo, now both the hopper and front door are reading open. I dont have a gray dial on the control board on the wall.
 
So replaced dt thermo, now both the hopper and front door are reading open. I dont have a gray dial on the control board on the wall.
Ok, found the gray dial, switched it to 1 as you said, plugged it back in and read the doors were open and would not auto clean
 
Ok. Need to get the icons off wall control before auto clean will work. Have you checked that the sensors are close enough together to get signal? Have you traced their wires and checked connections are good? If push comes to shove, those two sensors connect to a wire harness right above the vac switch. You could make a jumper wire to stick in connection,after disconnecting the switches, to bypass those two sensors. Just be sure stove is off, or you don't ground wires out on stove. kap
 
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After checking all connections on conv. fan wire harness and with a new drop tube thermos, if things still act up, I would have to say time for a new conv. fan. kap
 
Sorry, I didn't go back thru all posts. I would check all wire connections if we get this going and the new drop tube thermos doesn't do it. Also sorry I am not helping much, but hard to fix a stove over the computer. kap
 
Yes and they hook to their wire harness's right above the vac switch. Did you pull those connectors apart and put back together and trace to control board and pull that connection off and put back on, just trying to reseat things for better connection.. Also check sensors to make sure each half is close enough to each other? If this fails, then pull connections apart above wire harness and make jumper wire to bypass these switches, to get stove going. kap
 
Unplugged and plugged everything in, didn't do it. I wonder if the main board is bad? It ran great for the last 24 hours, conv motor jammed error and now this.