Quadrafire Mt Vernon not AE

fnolteiii

Member
Jan 17, 2011
28
Bangor, Pennsylvania
Morning all,

started Thanksgiving with high expectations for getting my MV back online. I’m having issues with the pellet feed stopping after initial startup. I’ve read the forums and cleaned it up extremely well. I thought my thermocouple was the culprit but having replaced it last night, I’m still having the same issue. Vacuum hoses and nipples are ok. Auger turns and feeds properly during startup but after the initi dump, t continues to feed right up to the blower fan coming on. Then the auger stops feeding. ive reset snap discs that can be reset. Any suggestions on what to look for next? I certainly appreciate anything you can suggest. Happy Thanksgiving.
 

kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
OFH meant to jump the vac wires together, with a jumper wire, thus bypassing the vac switch to see if there was issues. kap
 

kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
And be careful not to ground the wires on the stove, or you will have problems. kap
 

Overfireinthehole

Minister of Fire
May 5, 2017
623
Miller MO
Usually the stance I take is if you don’t understand what bypassing a switch means you probably shouldn’t try because your likely going to short something out and make matters worse.
 

fnolteiii

Member
Jan 17, 2011
28
Bangor, Pennsylvania
Latest ***
worked normally since Thanksgiving then I shut it down last night for a cleaning. Now auger doesn’t feed at all. I emptied the hopper and vacuumed out the dust. When it calls for heat, no auger movement in either direction. Snap disc #2 or auger motor? I’m fine jumping out switches btw. Suggestions please?
 

kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
First vac switch to see if auger runs, then #2 disc. And if you can see if you hear auger motor running, feel behind auger motor and see if shaft is turning backwards or not. kap
 

fnolteiii

Member
Jan 17, 2011
28
Bangor, Pennsylvania
$33 on Amazon & free shipping. Since my stove is from 2006, I’ll get a new vacuum switch unless you want me to try another approach?
SRV7000-531 But I’m seeing a universal quadrafire replacement vacuum switch... not an OEM
 

ARC

Member
Oct 31, 2017
57
Au Sable Forks, NY
Jumped out VAC switch and auger is turning. Is there anything I should do further with the VAC switch or just replace it?
Check rubber hose that goes from vac switch to stove see if it is plugged or cracked, also check door gasket to see if it is tight. Stick a dollar bill or piece of paper between door seal and stove close door and see if you can pull it out. Do that all the way around the door.
 

ARC

Member
Oct 31, 2017
57
Au Sable Forks, NY
Jumping the vac switch just let you know it is a vacuum problem, lost of vacuum because the door seal, hopper seal, hose plugged or cracked or a bad switch.
 
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fnolteiii

Member
Jan 17, 2011
28
Bangor, Pennsylvania
Door seal is tight as a frogs butt. Hose removed and appears crack free, nothing inside the hose. Bad switch? Interesting trick with the dollar bill. I also inserted paper clip straightened out into both nipples, just to be thorough. Plugged vac switch in and no auger movement.
 
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kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
There's no seal on the hopper that would affect this. Another thing to check is the nipple the hose attaches to on auger tube. Poke a pc. of firm wire thru it to make sure it is clear. Also make sure exhaust path is clear. From stove thru exhaust pipe. If all things check out, then it is time for a new vac switch. kap
 
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fnolteiii

Member
Jan 17, 2011
28
Bangor, Pennsylvania
There's no seal on the hopper that would affect this. Another thing to check is the nipple the hose attaches to on auger tube. Poke a pc. of firm wire thru it to make sure it is clear. Also make sure exhaust path is clear. From stove thru exhaust pipe. If all things check out, then it is time for a new vac switch. kap
I did insert paper clip into the nipple. Exhaust path has been cleaned and reemed with vent brush thoroughly. I’m just going to order a vacuum switch and keep my fingers crossed. Thanks again to all for your suggestions. I really appreciate the help!
 
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kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
And I would get that owners manual downloaded. kap
 

kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
Read some of your posts I missed. If hopper is empty, you loose vacuum. kap
 

Overfireinthehole

Minister of Fire
May 5, 2017
623
Miller MO
Check the two exhaust ports at the bottom of your firebox. Maybe you dropped some ash into those when cleaning
 

Gopher69

Member
Nov 6, 2014
21
NH
Not to get off-track, and excuse my lack of knowledge, as I'm a newbie pellet stove owner,
but is the 'thermocouple', actually the same as the 'ignitor' ?

Also... what is the need for the thermocouple 'cover' ?

Thanks !
 

kappel15

Minister of Fire
Sep 14, 2014
2,335
Iowa
The igniter is what heats up and starts the fuel on fire. The thermocouple is what senses the heat of the fire and signals the stove. The cover protects the thermocouple itself from the flames, making it last longer. If you have a stove, and not a manual, I would get one to help you know your stove and how it operates. kap