USSC 6041 Whining noise......???

Just a guess but does it sound like it's coming from the room fan motor? My 6500 started making noise in about 3 weeks after I bought it,just days after the 1 month period it blew the room fan fuse it was so bad. Being in a noisy print shop it didn't bother me much but makes me wonder about these USSC stoves.

There is someone on here I believe who is also on another forum who had USSC take his unit back because the unit was blowing soot all around. http://forum.iburncorn.com/viewtopic.php?t=12824

With either the combustion air motor or the room air motor throttled down from rated RPM (3600@60 Hz), you'll get a whining sound as a direct result of the harmonics produced by the frequency chopping effect of the control board. That's how a shaded pole non-synchronous motor is reduced in rpm, the frequency is electronically chopped from 60Hz to whatever the controller is calling for.

Because the motor is hard mounted to sheet metal (in the case of the fan housing), harmonics are produced and basically it's a 'live with it' situation.

The new 60 series from USSC all have shielded ball bearings on the armature shafts and need no oil. In fact, if you oil them, it attracts dust and shortens the life of the bearing.

The soot problem has nothing to do with the motor noise.

SidecarFlip said:

With either the combustion air motor or the room air motor throttled down from rated RPM (3600@60 Hz), you'll get a whining sound as a direct result of the harmonics produced by the frequency chopping effect of the control board. That's how a shaded pole non-synchronous motor is reduced in rpm, the frequency is electronically chopped from 60Hz to whatever the controller is calling for.

Because the motor is hard mounted to sheet metal (in the case of the fan housing), harmonics are produced and basically it's a 'live with it' situation.

The new 60 series from USSC all have shielded ball bearings on the armature shafts and need no oil. In fact, if you oil them, it attracts dust and shortens the life of the bearing.

The soot problem has nothing to do with the motor noise.

Click to expand...

If the above remark (in bold) was aimed at my post, it was only to let preacherbiggin know of other issues with USSC stoves and that the soot comment had nothing to do with his particular noise problem. If preacherbiggin took it as such I apologies for the way I wrote it and didn't mean to be misleading in my post.

Rubicon 327 said:

SidecarFlip said:

With either the combustion air motor or the room air motor throttled down from rated RPM (3600@60 Hz), you'll get a whining sound as a direct result of the harmonics produced by the frequency chopping effect of the control board. That's how a shaded pole non-synchronous motor is reduced in rpm, the frequency is electronically chopped from 60Hz to whatever the controller is calling for.

Because the motor is hard mounted to sheet metal (in the case of the fan housing), harmonics are produced and basically it's a 'live with it' situation.

The new 60 series from USSC all have shielded ball bearings on the armature shafts and need no oil. In fact, if you oil them, it attracts dust and shortens the life of the bearing.

The soot problem has nothing to do with the motor noise.

Click to expand...

If the above remark (in bold) was aimed at my post, it was only to let preacherbiggin know of other issues with USSC stoves and that the soot comment had nothing to do with his particular noise problem. If preacherbiggin took it as such I apologies for the way I wrote it and didn't mean to be misleading in my post.

Click to expand...

Gee, weren't we discussing your soot issue on another forum?

I jusr wanted to let PB know that there was no correlation. He has an entirely different unit than you do. No apology needed or required far as I'm concerned. Just go print me up some 'C' notes and we'll call it good.

Yes I believe we were, I just didn't think I was making it sound as though it may have contributed to my blower motor failure, and didn't think I had mentioned my blower motor issue in that thread?

Anyhow, when I do another run of C notes I will send some your way. I just have to remember not to put my face on them this time around......I couldn't get anyone to take them :lol:

I've been getting a little tired of the Tommy thread over there. He's not on here for obvious reasons (this site is moderated as it should be and that stuff isn't condoned on a moderated site)

There appears to be more pellet cookers here than coen burners but I do both so I'm equal opportunity. :coolcheese:

SidecarFlip said:

I've been getting a little tired of the Tommy thread over there. He's not on here for obvious reasons (this site is moderated as it should be and that stuff isn't condoned on a moderated site)

There appears to be more pellet cookers here than coen burners but I do both so I'm equal opportunity. :coolcheese:

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Sorry, I'm not sure I understand....Tommy thread?

I don't burn corn, but went there on recommendations from some folks on here so I could try and find out a little info on the USSC 6500 before I bought it.

Rubicon 327 said:

Sorry, I'm not sure I understand....Tommy thread?

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then you need to check it out.
its in the wanted and for sale section. 16 pages worth.
good readin. you'll be glad you did.

The webmaster finally locked it. It was getting, shall we say, out of hand. One reason it's better to have a moderated forum with rules. Keeps the riff and the raff from pulling that sort of crap.

I don't know if it's good reading or not. It is an excercise in what you can get away with when the sheriff has no gun.

I'm in it as well because I don't feel that approach is above reproach and I'm open about my opinions.

I would never think of coming on this site and pulling that. For one, I'd get booted and two, it's not the proper way to do business and I have a thriving Internet business but it's of no revelance to this type of forum or that either.

I've been on that site for a few years and for the most part I enjoy the interaction. I didn't enjoy the Tommy thread.

Does the noise sound the same on all settings 1-9 or does it change? Maybe you have a bearing going out on your room fan.

I won't mention him again. I've had 110% of my fill of him.....

In as much as your unit is new, it's probably just harmonics you hear. The room fan is insulated from the firebox outer housing with a very thin gasket and is secured to the outer wall of the firebox with 4 self tapping Tek type screws so there isn't much in the way of isolation from any harmonics and all shaded pole motors produce them, even with no frequency chopping. It's a result of the armature itself.

Basically, it's called a shaded pole because the armature's poles, the ones effected by the induction forces produced in the outer laminations are metalically 'shaded' or out of sync with each other. That causes rotation in the plane that they are arranged in and it also causes the motor to produce harmonic resonance. That's why, to reverse the rotation, you flip the armature or press the armature off the through shaft and reverse it. The harmonics are a characteristic of any shaded pole motor. My 6039 also displays some harmonic resonance. I just ignore it.

Additionally, that's why a shaded pole motor produces little starting torque. The theoretical torque value is the resistance to rotational force produced by the pole spacing, which, is close in a small motor.

Shaded pole motors of the non-synchronous variety are cheap to produce, produce little torque and can be rotationally throttled by frequency chopping, an ideal scenario for this application.

PreacherBiggin...It's like your motorcycle. It makes strange noises ocassionally. :lol:

Hey sidecarflippy see you are still around I been on your new site not really doing very well sorry to see that.Mine is on the other hand doing very well thank you. If you can recall All I did was post a post UNDER THE TOPIC THINGS FOR SALE AS OTHERS DO TO. I was not in bussiness at that time. And as you always do you jump on anything to make you look bigger. Your smart comments where how ever some what innertaning. I can understand why you are still bitter after all I can't even spell and I had over 17,000 views on my post on that forum in only six weeks. I now am in business and doing very well I my add You may want to Google me I am sure your buddy's now about my web site you can ask them how to spell it.Sorry I do not have very much time to help out more people on all these forums .How ever I do from time to time.It seems only fair that I should be able to help people on these forums with out bullying like well you
O by the way It seems like some off my customers are going to put some videos on Utube How about that.I now have kits in many states and I have not had one complaint so far .I am sure one day there will some and you can be the head of the pack again.Untill then burn on

your friend

tommy

Good for ya. It's nice to know that there is still an audience for you type of abberation.

You still can't get 5 pounds of feces from a one pound can, even if you convince your customers otherwise.

Good luck in your venture, you'll need it at some point, I'm sure.

Far as my 'site' is concerned, it costs a whole 12 bucks a year, basically the price of 2 cheeseburgers, a large fry and a strawberry shake.

I don't miss your run on sentences, poor punctuation and pie in the sky claims.

With that, please refrain from addressing me. I won't reply again.