Updating the Controls in the Harman Pellet Pro II.

Don2222 Posted By Don2222, Mar 16, 2019 at 11:26 PM

  1. Don2222

    Don2222
    Minister of Fire 2.
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    Feb 1, 2010
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    Loc:
    Salem NH
    Hello

    Anyone try doing this? It works well once I got the manual feed adjust set properly. :)

    Harman Pellet Pro II
    Updated to work with new P61 Manual Circuit board and P61 Wire Harness. The combustion blower was also updated with the quick change housing and a new OEM Harman combustion blower with single paddle 4-3/4" diameter impeller blade. The Manual feed adjuster still works to adjust the feeder to avoid the 6 Blinks Status Error and to adjust for the quality of the wood pellets. In this case it is adjusted to 8 full turns to the left to prevent the 6 Blinks error so the stove works as it should. see video
    It really cranks out the heat! The shop came up to 97 degrees F in no time flat!

     

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  2. Tim_M

    Tim_M
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    Mar 28, 2010
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    Do you know if this would work for an Invincible T? I think the Invincible was Harman’s successor to the Pellet Pro II, and I believe the controls are identical on the 2 stoves. My Invincible T has been working reliably as my basement heater for 8 seasons now. I had to have the board repaired a few years ago, sent it off to Brunners and it’s been great since. But I’m concerned that if another problem comes up I may not be able to repair it due to an inability to find parts.
     
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  3. Don2222

    Don2222
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    Feb 1, 2010
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    Yes the controls are identical so it should work, even the auto board set to manual should work which is less money$ :)
     
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  4. Washed-Up

    Washed-Up
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    Nov 5, 2011
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    Well done! what would the total cost of these modifications? I considered something like this before I found my P61
     
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  5. Don2222

    Don2222
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    Feb 1, 2010
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    Loc:
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    You might be able to use the P38 Control Board update kit because the circuit board has Dip Switches to set the circuit board to the P61 manual board.Howeve I am not sure how the circuit board mounting plate will fit in. You may have to trim it? I got the manual circuit board, manual wire harness and circuit board plate where the left side is bent up and that fit in there quite well. :)
     
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