Harman Accentra Insert Won't Stop Feeding

JimmyJackson182 Posted By JimmyJackson182, Feb 11, 2018 at 6:47 AM

  1. JimmyJackson182

    JimmyJackson182
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    Feb 11, 2018
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    Loc:
    Doylestown
    Hey all,

    New here, just bought a home with a Harman Accentra insert. I'm loving it—but learning the stove can be very temperamental. Here's one of my primary issues:
    • The stove sometimes will not shut off, even when turned to off as per directions—it keeps feeding.
    I have all the dials correctly switched to off, and even turned the feeder to the lowest, as well as the temp. Still feeding all night. This has only happened about 3 nights over the past month since I've owned it, but wondering a solution?

    I have NOT tried the open hopper trick, to shut off the switch. Nor have I unplugged, as I'm not quite sure which breaker it's on (she main lined it in, there is no actual plug).

    Any help would be great appreciated. Thanks!
     
  2. DAKSY

    DAKSY
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    Dec 2, 2008
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    Have you cleaned the ESP?
     
  3. JimmyJackson182

    JimmyJackson182
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    Feb 11, 2018
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    I have not-unless thats the igniter? I unscrew the plate weekly to vacuum it out for air flow.
     
  4. Washed-Up

    Washed-Up
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    Nov 5, 2011
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    The ESP is in the exhaust tailpipe at the back bottom of your stove, just give it a wipe with a damp cloth then wipe it with an alcohol pad.
     
  5. DAKSY

    DAKSY
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    No. The ESP is in the exhaust stream before the vent pipe. It is the BRAIN of a Harman stove.
    If it's coated with fly ash, it can't sense the the exhaust temperature is less than 90 degrees
    & the unit won't shut down.
     
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  6. JimmyJackson182

    JimmyJackson182
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    Feb 11, 2018
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    Super helpful guys, thank you. Now HOW do I get to it? My Harman is literally inside my chimney—it's an original stone chimney the set the stove into. So how do I gain access to the ESP?
     
  7. DAKSY

    DAKSY
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    You will hafta pull the insert out of the fire place. There are latches on either side - refer to your manual - that will release the insert from the mounting shell. You will need to purchase or fabricates one of these:

    https://pellet-stove-parts-4less.com/products/harman-accentra-52i-service-rail-kit?gclid=CjwKCAiAk4XUBRB5EiwAHBLUMQtC4VhuVV59gdznzOTYhCzRF7AMDEKOZ_vocWzzTXl_9r1cyIKSvRoC-3wQAvD_BwE

    in order to support the unit when it's pulled out. While you have it out, you might as well clean the fines box, the blowers & the venting...

    Harman's website has maintenance videos that can be quite helpful...
     
  8. Tim_M

    Tim_M
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    Mar 28, 2010
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    Loc:
    Halifax, NS
    My Accentra insert had a similar problem a few years ago that turned out to be caused by a bad pot switch on the control board. It was the one for the Room Temp - Stove Temp knob. Apparently this is a common issue on Accentras (maybe other Harman models also?). They’re fairly cheap to replace, I think I ordered a couple online for $3 each. I removed my board and paid an electronics repair guy $40 to solder it in but if you’re comfortable with soldering I don’t think it’s a big job.
     

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