Blaze king thermostat issues

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fire slave

Member
Dec 17, 2013
40
bc canada
I’ve got a chinook 30, that has been working great for the last 4 years I had a princess in another house for 8 years. So I do know a bit about blaze king stoves.
This fall my stove was burning great , but with a micro adjustment on thermostat lower it would crash and go below active and fire would go out. So I decided to take a look at the thermostat, and removed the cover. I saw some dust so vacuumed it with shop vac and put cover back on. After that I noticed my stove was burning warmer than usual. And I couldn’t dial it back and get my normal long 24 hour burns. My place was getting much warmer too. I took the cover off again and noticed the silicon on one side of the thermostat seemed missing and there was a gap there. Not sure if that was always there or did I the vacuum suck it out. I also checked the door gasket and it’s fine.

Wondering if anyone noticed any gaps on their thermostat , there also seems to be a small bend in the metal there as seen in pics. Should I just fill it with high temp silicon.
 

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The metal is wavy, so is the adjacent brace. I'd try filling that gap area with red RTV and see if that helps.
 
The metal is wavy, so is the adjacent brace. I'd try filling that gap area with red RTV and see if that helps.
I noticed the wavy metal it’s also bent on opposite side but going same direction. Must have been there since I got it. It was a demo from a local dealer. Maybe happened during transport or during manufacturing.
 
I am suspicious of the existing silicone. It should be black. Perhaps your dealer was in there futzing around and at the very least screwed up the silicone on the reinstall.

Why is that bent? Did he pry on it to remove the old thermostat.

It’s a used stove after all.
 
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It was barely used. Demo at the dealer. Maybe fired 20 times over 2 winters. I doubt he took the thermostat off. But maybe.
There does look like here’s black underneath in spots. And it’s bent on the opposite side of the thermostat as well.
Looks like something happened maybe during manufacturing?? But that hasn’t changed since it was in my house. And it was running perfect before.
[Hearth.com] Blaze king thermostat issues
 
I am suspicious of the existing silicone. It should be black. Perhaps your dealer was in there futzing around and at the very least screwed up the silicone on the reinstall.

Why is that bent? Did he pry on it to remove the old thermostat.

It’s a used stove after all.
You can see the bend on the left side as well.
 
That stat has been removed by somebody other than the manufacturer. That orange silicon is the red flag. Why did they remove it? Did it get crushed when this stove was dropped on it's back? Hard to say since you can't know what the PO did during their time of ownership. I would be more leery of a stove preowned by the stove shop for two winters than a stove owned by a reasonably smart homeowner. Same reason you don't want a car owned by a mechanic. The dealerships do lots of stove moving to fairs and such, they get moved by "rough" people, they take things apart just to learn how they work, etc.

At this point, you have an obviously reinstalled thermostat that may be leaking which would ruin the calibration. I think I would consider reinstalling it properly or testing with smoke that there is no air leak.
 
That stat has been removed by somebody other than the manufacturer. That orange silicon is the red flag. Why did they remove it? Did it get crushed when this stove was dropped on it's back? Hard to say since you can't know what the PO did during their time of ownership. I would be more leery of a stove preowned by the stove shop for two winters than a stove owned by a reasonably smart homeowner. Same reason you don't want a car owned by a mechanic. The dealerships do lots of stove moving to fairs and such, they get moved by "rough" people, they take things apart just to learn how they work, etc.

At this point, you have an obviously reinstalled thermostat that may be leaking which would ruin the calibration. I think I would consider reinstalling it properly or testing with smoke that there is no air leak.
hmm , yeah not too sure. I doubt they moved it. I live in a small town. They don’t do any fairs or anything like that. Maybe when they received it. Or maybe it was a demo/ or second when they bought it. I can ask him.
But like I said it worked great for four years. Just acting up lately. I think I vacuumed some of that sealant out by accident. I’ve got some high temp sealant that good for very high temps. And it black. I’ll run a bead on it and see how it runs after. There doesn’t appear to be any scuffs or marks on the back.
 
You've had it 4 years, dealer had it 2 years. I'd suggest it's not the thermostat. Check out the combustor.

The thermostat is not siliconed into current production models. You can take a ball peen hammer and tap the side walls towards thermostat body, but it's not critical.

BKVP
 
You've had it 4 years, dealer had it 2 years. I'd suggest it's not the thermostat. Check out the combustor.

The thermostat is not siliconed into current production models. You can take a ball peen hammer and tap the side walls towards thermostat body, but it's not critical.

BKVP
Thankyou for the info!
I’ll check it out , this model came with the steel combustor. Is there a reason some come with steel and others s ceramic? Should I stick with steel if I need a new combustor?
 
Steel go active sooner, ceramic hold activity longer. As the MFG, we can only recommend you use the same OEM combustor.

BKVP
 
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