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Exhaust Blower Fan starts then slows and stops
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TOPIC: Exhaust Blower Fan starts then slows and stops

Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16914

Running a 6039 with ABC control. I just bought this stove used and it ran for about 2 weeks really well. I tried to start it the other day and it would not stay running. It sounds like the exhaust fans starts and then slows down and or stops. I took the fan off and to clean out and it still does not work. The gasket was brittle and I tried to get back into place.

A coupled of questions:
Is the fan shot or might there be a wiring problem?
Will a bad gasket prevent start up?
Will the motor run while out of the blowre housing?

any help would be great..

Mike

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16916

  • FirepotPete
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As a safety feature your stoves exhaust fan show be running full tilt if you open the door or remove it from the stove. There is a vacuum switch that will tell it to go full blast to keep smoke from going out into the house if there is a leak.
If you have a volt meter check the voltage at the motor when you try and start up, if there is no voltage then maybe the fuse for it is shot, if the fuse is good then it's a board problem or one of the safety switches not allow voltage to the motor. If there is voltage then the motor is shot.
When you go to replace the blower you can use High Temp RTV sealant if you can't find any gasket material. It probably won't hurt anything without it but your stove will be pulling air AFTER the fire and that's not how the stove is designed to work.
When using the RTV read the directions, don't screw it all the way down until the RTV starts to harden, then tighten it to make sure it seals all the way around. You want it to contact real good around everything and then tighten once it's starting to setup nice. Don't over tighten the original gasket material made a little space between the blower and where it mounts, maybe like 1/32", not much.
"Gentlemen. You can't fight in here. This is the War Room!" Gen "Buck" Turgidson

"Blessed are the Cheese Makers", Monty Python.

USSC 6039HF, 5th winter and burning strong, home made fire board and clinker pot.

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16931

I took the fan out and tried starting the unit. It kicked in and ran fast for about 3-5 seconds then slowed down and stopped. I unplugged the fan tested the connections where the motor was plugged in at and I had 120 Volts the whole time. Can I assume that the fan is shot?

Thanks Mike

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16932

  • FirepotPete
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That would be my first guess, if you have a motor place around someone could test it, but if you have voltage at the motor and it's stopping I'm betting the motor is going out.
"Gentlemen. You can't fight in here. This is the War Room!" Gen "Buck" Turgidson

"Blessed are the Cheese Makers", Monty Python.

USSC 6039HF, 5th winter and burning strong, home made fire board and clinker pot.

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16933

Thanks you for all your help. Will let you know what happens.

Thanks,
Mike

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16991

Alright, tested fan... ran consistantly hoked up to 120 volts. Hooked it back into the connectiions and still started for about 5 seconds and then stopped. Called Ammerican Stove Company, they instructed me to bypass the pressure switch by removing the wiring connections and jumping them with a paper clip, had the same problem. I also bypassed the low limit switch by this manner and had the same results. Any sugeestions?

Thanks,
Mike

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #16994

  • FirepotPete
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Not knowing your board I have to think there is something not allowing the proper voltage to the fan. You need to first go to the top locked post on this forum: "6039 tech manuals and other tips and tricks"

Go half way down past the 4 button instructions there you will find the "Old ABC board" board instructions. If you have trouble viewing it, right clink, click "view image" then you should get the enlarge + on the cursor, click that to enlarge. Pages 3-11 looks like error codes and adjustments for your board. You'll need to watch the board when trying to start it up and see if you get any error codes. Then follow the instructions to check all the settings, maybe something got pushed and changed and now it's not running right. Kind of a pain but you will know your board after looking at this information.

Sometimes it's easiest to go back to the factory defaults and then tweak to your liking.

Let us know what you find.
"Gentlemen. You can't fight in here. This is the War Room!" Gen "Buck" Turgidson

"Blessed are the Cheese Makers", Monty Python.

USSC 6039HF, 5th winter and burning strong, home made fire board and clinker pot.
Last Edit: 4 months, 3 weeks ago by FirepotPete.

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #17020

Thanks Firepot i went through and I think I reset to factory settings. the exhaust blower fan runs and stove started, nice thins with the weather here in minnesota around zero. The only thing that is happening now is the A light flashes about every 5 seconds. I put the blower fan back in and used high temp rtv instead of the gasket. Might this be causing the A light to flash? Stove is running fine, auger is feeding ect..
Thanks for all your help.

Mike

Re: Exhaust Blower Fan starts then slows and stops 4 months, 3 weeks ago #17021

  • FirepotPete
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Ya that blinking light appears to signal loss of vacuum. I don't know if it's the RTV not sealing or if you have a leak somewhere else. When it ran good before did you notice the "A" light blinking?

The manual says the stove will go into shut down if it senses loss of vacuum. Is the stove trying to shut down? If not open the door and see if the light changes state. I guess I would worry if the stove is sensing vacuum loss but not shutting down. Then again if it's sensing a loss when there is none then it's the vac switch or board problem.

Keep us updated on what you find and stay warm.

Oh and considering where you live, I just have to say......

GO PACK!!!!
"Gentlemen. You can't fight in here. This is the War Room!" Gen "Buck" Turgidson

"Blessed are the Cheese Makers", Monty Python.

USSC 6039HF, 5th winter and burning strong, home made fire board and clinker pot.

Re: Exhaust Blower Fan starts then slows and stops 4 months ago #17321

Well It ran fine for about 2 weeks with the blinking "A" light and did not shut down. Now it will not even start up. The auger will not turn to feed fuel into the fire pot. I the aggitator motor kicks in after the 3 minute start time. The auger is seated correctly as I can press the "on' button and it feed constantly and upon shut down will purge. Would the [ressure switch cause the auger not turn at all?..

Oh thanks for the Pack comment!. We got them the first time, but tough to win there with a quauter back that had not thrown a pass all year. lol
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