Mt Vernon AE Snap Disc

  • 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.
Status
Not open for further replies.
B

BurninLove

New Member
Nov 23, 2013
6
Eastern PA
I've been getting "conv blower jam", "comb blower jam" and "snap disc tripped" errors. i tried powering down and turning back on. The stove would start up and run for 5-10 minutes and then shut off with any or all of these errors. It looks like I tracked it down to a burned out snap disc. I've attached a photo of it for everyone to see. My question is how do I replace it and do I need to replace the burned looking wiring. Also, if anyone has any ideas as to how this happened, I'd be happy to know.

Any help would be appreciated.

IMG_20131123_121526_960_zps45e0e36d.jpg
IMG_20131123_121526_960_zps45e0e36d.jpg.html
 
Last edited:
Update: Although the wire leads look a little shady (opinions?), I made sure the wires were firmly in the snap disc. When I did that, the stove started right up. ;em
 
I don't see a photo in your first post
 
Update to the update: The stove is down with a new code: "Bad TC firepot" .....What are the chances of all these problems occuring in one day? I checked the connections, took apart and cleaned the TC and sheath, shut the stove off and turned it back on- still no luck. Does anyone have any ideas besides replacing the TC? Overall I'm less than impressed with my stove :confused:
 
That looks like a manual reset disc. Have you reset it just to be sure?
 
I have been getting that error after 5-6 days of burning. When I reset the stove it fires up fine and then the error occurs again at shutdown. After I clean the stove it runs fine for another 5-6 days. I too cleaned the TC and ceramic cover. I have started burning another pellet brand to see if that makes a difference. Sorry I don't have any answers for you but I will be watching this thread closely.
 
My inlaws have been operating their mt vernon going on 5 years now and have had to replace the TC for this same error.

Have you cleaned the two air pathways on the bottom, behind the baffle? They on occasion get this error and cleaning the exhaust pathways fixes it.
 
I tried cleaning behind the baffle using a shopvac. I hit retry on the thermostat until it went back to the normal screen. The stove went into startup, got a flame, and then went into shutdown. I tried the same thing before cleaning behind the baffle and the same thing occured.. Any other ideas, or is it time to replace the TC? At $95 and a cold week looming ahead of us, I was hoping for an easier solution. Thanks for the help so far and keep it coming!
 
BurninLove said:
I tried cleaning behind the baffle using a shopvac. I hit retry on the thermostat until it went back to the normal screen. The stove went into startup, got a flame, and then went into shutdown. I tried the same thing before cleaning behind the baffle and the same thing occured.. Any other ideas, or is it time to replace the TC? At $95 and a cold week looming ahead of us, I was hoping for an easier solution. Thanks for the help so far and keep it coming!
Click to expand...
In addition to cleaning behind the baffle, you have to get into the channels that go down at the back on both sides. I use a piece of flexible plastic tubing (3 ft long) coupled to my ash vac. About 16" of the tube can be lowered into the two channels.
 
I do the same as Harvey during my monthly "deep cleaning", and sometimes use a dryer vent brush in there as well. This is possibly the most important area to clean on an MVAE, from my experience, as it's the main path for exhaust. If backed up, you have a poorly functioning stove.
 
Ok, after cleaning out the channels as best I could I gave it another try and no luck. I went and picked up a thermocouple and after some work got it replaced. The stove started up fine and as me and the Mrs. are celebrating the flames with it on high, we both smell some burning. I check the snap disc and the one lead, the slightly discolored one in the picture I linked to above, is completely fried.....now what do I have to replace? The snap disc, the wires connected to the snap disc, both?
 
I would replace the snap disc as maybe the heat from the connector may have caused the disc to malfunction.I would put a new connector on the wires that got fried,and see if that fixes your problem.
 
Snap disks are notoriously unreliable devices, but I don't think I have seen one fry itself. I would check first to see if the wires leading to the snap disk have been damaged and are shorting to the stove body. Chances are that an overload did damage to the disk and it will have to be replaced, but the question is what caused the overload.
It is possible that the snap disk generated the heat, but I wouldn't put a new snap disk in until I was sure that I wasn't going to promptly fry it.
 
Status
Not open for further replies.

Similar threads

B
2007 Mt. Vernon AE
Replies
1
Views
257
The Pellet Mill - Pellet and Multifuel Stoves
kastein
K
J
Quad 1200i Convection Blower Won't Run
Replies
3
Views
531
The Pellet Mill - Pellet and Multifuel Stoves
js312
J
K
Is there an upgrade to the control board for 2006 Mt Vernon AE
Replies
1
Views
954
The Pellet Mill - Pellet and Multifuel Stoves
KipL
KipL
E
Vogulzang 5790 e3 after brief startup and run
Replies
0
Views
371
The Pellet Mill - Pellet and Multifuel Stoves
Ethoroe1982
E
D
mt vernon ae insert bad tc drop tube code
Replies
3
Views
2K
The Pellet Mill - Pellet and Multifuel Stoves
Billy F
B
Top Bottom
Back