Harmon absolute 43 wont shut down

Jan 5, 2021 - 7:18 PM

  • my stove just started not wanting to shut down , it will start and run fine just wont shut off. i have to open the hopper door which shuts down the auger feed . and it will run out of fuel. any help?

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  • Hello
    First check the ESP probe, if it has the Red wires which it should, unplug it from the control panel and put an ohm meter on the 2 test points. It should read 1,000 ohms if it reads a lot lower then it thinks the fire is still going and it will keep the fan running.
    If that is good, then replace the circuit board.

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  • It dosen't even start to slow down its like i didnt even turn it off . it states on the panel shutting down . Ill ohm out the esp probe.

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  • Ok, check that.
    Also if the fire door is open or the door gasket leaks a lot then the blower will not stop, which also means you'd have to check the vacuum hose & vacuum switch too.

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  • 1)i checked the esp probe it was fine..i got into the diagnostic part of my stove. when i turn the stove off ( shut down), the motor feed % rate stays the same and i see motor turn on and off. but if i lift the hopper door ( where you add pellets) for say five minutes it will shut down motor feed %0 and the feed motor will stay off and the stove slowly shuts down as normal . and i can close the hopper door. I watched the esp probe read from room temp up to 360 deg.

    2 )if i open the fire door the blower stops as it should.
    3) all of my blower motors seem to work normal

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  • 1)i checked the esp probe it was fine..i got into the diagnostic part of my stove. when i turn the stove off ( shut down), the motor feed % rate stays the same and i see motor turn on and off. but if i lift the hopper door ( where you add pellets) for say five minutes it will shut down motor feed %0 and the feed motor will stay off and the stove slowly shuts down as normal . and i can close the hopper door. I watched the esp probe read from room temp up to 360 deg.

    2 )if i open the fire door the blower stops. works normal
    3) all of my blower motors seem to work normal

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  • Where does the vacuum hose connect to the stove on your model?
    Is it the bottom of the hopper or the air intake pipe?

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