Classic Bay 1200 Insert Major Troubleshooting

  • 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.

mike64b

Member
Feb 13, 2021
12
bishop, ca
Hey all - could use some help here before I stupidly waste any more money.

I've got a quadrafire classic bay 1200 insert paired with a Nest thermostat that has worked great until now. Overnight it was running and stopped heating, I figured it was the usual issue where pellets get a little stuck in the hopper and fail to drop, turns out not. Tried multiple resets, tried moving around pellets around the chute and digging em all out of the hopper but still couldn't get it to drop even though heat was being called for (red light and everything else looked/sounded normal.

Well I started doing more diagnosing and checking snap discs, of course being in a rush I made a horibly stupid mistake and shorted snap disc #1 (purple wires, for the convection blower) while it was live and accidentally touched the metal case. Big shock and now there was zero indication of life on the control box (no lights, no fan noises, no nothing). I pulled the control box out and found a blown relay IC and probably more damage that was not visible on it. I confirmed power was still present at the control box so I definitely had a bad control box now.

I ensured power was off now this time and used a DMM to correctly test all 3 snap discs this time, they all checked out fine and I also confirmed snap disc #3 was not in need of being reset. I then checked the fuse and verified it was still good. It was looking like just the control box was bad - ended up getting a new one and popping it in. Upon power up, we had lights back, and all was looking promising until I turned up the thermostat - this time the call light came on and quickly after a small pop sound was heard in the control box. Again it sounded/smelled like something got fried in the control box.. Lights were still on but no activity on the stove, IIRC no fan and no pellets dropping.

So - obviously, huge waste of money & stupidity aside - my conclusions are that there is obviously a residual problem I need to find and fix before buying YET another controlbox and wasting it. I don't know if it is related to the original problem of pellets failing to feed or if all from the shock breaking more things. In any case - does anyone have suggestions on next steps or guesses as to what might be the problem - if nothing else I was going to start trying to manually test the blower, convection fan, pellet motor, etc individually? Making matters worse is that this stove is hours away from me in a cabin right now and I need to drive up to it with parts, so not sure what I'm going to do, ideally I could pair down to a subset of parts that are the most likely issue and I can buy and take those up with me...
 
Maybe a stupid Question: Do you have a manual?
Did you do the Diganoises as per the manual?
If everything runs (fans) my first impression would be Vac Switch
or something preventing vacuum, eg, a dirty stove .
Your short can not comment . Just test everything, including wiring
 
Hey all - could use some help here before I stupidly waste any more money.

I've got a quadrafire classic bay 1200 insert paired with a Nest thermostat that has worked great until now. Overnight it was running and stopped heating, I figured it was the usual issue where pellets get a little stuck in the hopper and fail to drop, turns out not. Tried multiple resets, tried moving around pellets around the chute and digging em all out of the hopper but still couldn't get it to drop even though heat was being called for (red light and everything else looked/sounded normal.

Well I started doing more diagnosing and checking snap discs, of course being in a rush I made a horibly stupid mistake and shorted snap disc #1 (purple wires, for the convection blower) while it was live and accidentally touched the metal case. Big shock and now there was zero indication of life on the control box (no lights, no fan noises, no nothing). I pulled the control box out and found a blown relay IC and probably more damage that was not visible on it. I confirmed power was still present at the control box so I definitely had a bad control box now.

I ensured power was off now this time and used a DMM to correctly test all 3 snap discs this time, they all checked out fine and I also confirmed snap disc #3 was not in need of being reset. I then checked the fuse and verified it was still good. It was looking like just the control box was bad - ended up getting a new one and popping it in. Upon power up, we had lights back, and all was looking promising until I turned up the thermostat - this time the call light came on and quickly after a small pop sound was heard in the control box. Again it sounded/smelled like something got fried in the control box.. Lights were still on but no activity on the stove, IIRC no fan and no pellets dropping.

So - obviously, huge waste of money & stupidity aside - my conclusions are that there is obviously a residual problem I need to find and fix before buying YET another controlbox and wasting it. I don't know if it is related to the original problem of pellets failing to feed or if all from the shock breaking more things. In any case - does anyone have suggestions on next steps or guesses as to what might be the problem - if nothing else I was going to start trying to manually test the blower, convection fan, pellet motor, etc individually? Making matters worse is that this stove is hours away from me in a cabin right now and I need to drive up to it with parts, so not sure what I'm going to do, ideally I could pair down to a subset of parts that are the most likely issue and I can buy and take those up with me...
Here is the manual
Per Johneh you are going to need to check everything. You may have damaged some insulation on a wire too. No sense in buying parts yet.