Small white adjustment screw on Harman Accentra

  • 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.
forya

forya

Member
Feb 18, 2010
269
Bucks County Pa
The small white screw next to the Ignighter light on the harman accentra insert is used to adjust the combustion fan to make up for voltage irregularity. So If I turn it clockwise would I would be turning the combustion speed down by adding resistance?
So I should keep it all the way to the left, or counter-clockwise to get most combustion fan voltage? The manual is very vague on this.
 
Don't touch it. You will start the self destruct process!

Turning it to the right will turn down the blower speed/voltage.

Eric
 
I think i need a little more combustion air with these hamer pellets. I get a huge buildup of ash at the end of my burnpot, and it is very dark, leading me to believe that it is burning too rich, so I was thinking of increasing the combustion air, and since there is no adjustment on the Harman Accentra other then that screw I was going to give it a try. I am getting 122V at the plug, would turning that screw down harm the stove?
 
Lol I am having a comb problem and my dealer told me to turn it all the way to the right .... didn't say anything about volts just said it would give me the max!


Where should it be? Lol
Eric, should it be in the middle? Any help appreciated!
 
I would think that all the way to the right would actually reduce the voltage to the motor, and lower your combustion air, but I don't know (that's why I posted this). Like I said the manual is very vague on this.
 
Generally speaking pots are wired so turning CW increases the voltage and CCW decreases the voltage. I would expect, therefore, turning it clockwise would increase the blower speed. I wouldn't worry about the voltages unless you are familiar with electronics. However it you are wondering about the voltage check the voltage to the motor as you move the pot back and forth.

Robert
 
That only effect the pilot burn. Level 1 After that the pot is bypassed
 
rickwa said:
That only effect the pilot burn. Level 1 After that the pot is bypassed
Click to expand...






Explain a little more please I don't understand...
You saying the draft/volt control is only for the lowest setting on the stove?
 
I tried to figure out if that was the case by reading the manual and it touches on that point a little bit but isn't very clear if it is on Low setting only or not. Attached is page 19 of the manual that addresses this adjustement. By the sounds of it, like iceman says, the voltage isn't the key component here it's your drafts based on your paticular install. I wouldn't touch that adjustment without a draft meter. You can get those for about $30 on ebay. Also I would look at the thread https://www.hearth.com/econtent/index.php/forums/viewthread/36089/ because they talk about some of the effects of the adjustment.
 

Attachments

  • LOW DRAFT VOLTAGE ADJUSTEMENT.png
    LOW DRAFT VOLTAGE ADJUSTEMENT.png
    49.7 KB · Views: 979
So there is no way for a non-dealer to adjust the combustion fan speed?
 
I beleive, all the way to the right (clockwise) maxxes the voltage....there isnt much difference between min and max tho......3-5 volts, I believe.....and the only way to really set this thing is use a magnahelic.....you can set the thing yourself if you have one......kinda like adjusting an old carburetor by ear without one......
 
Well my lack of air was due to esp/comb motor.....
I never knew the esp was oval thought it was supposed to shape into a point!
 
Hmmm I never actually took my ESP out, I just reached in there and wiped it with a damp rag, next time I pull the stove out, I will remove it and inspect it better. I did the Combustion motor at the beginning of the season, but did not spray it with silicone, like the manual said to because my silicone said max temp 800 F, and i was afraid on starting a fire.
 
Status
Not open for further replies.

Similar threads

R
Harman Accentra 2 blink
Replies
6
Views
575
The Pellet Mill - Pellet and Multifuel Stoves
Washed-Up
Washed-Up
J
Harman Absolute 63 Blown Fuse Still After Some troubleshooting
Replies
8
Views
928
The Pellet Mill - Pellet and Multifuel Stoves
Iburnslow
Iburnslow
L
Wire Heat pump & Harman accentra 52i to one thermostat
Replies
2
Views
688
The Pellet Mill - Pellet and Multifuel Stoves
Linkur01
L
J
Harman Accentra Malfunction after Power Resumption
Replies
6
Views
1K
The Pellet Mill - Pellet and Multifuel Stoves
hinkle
hinkle
P
P 68 problem. Too much draft??
Replies
25
Views
3K
The Pellet Mill - Pellet and Multifuel Stoves
pipeliner542
P
Top Bottom
Back