Harman Accentra Insert Won't Stop Feeding

[JimmyJackson182]

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!

 

[DAKSY]

Have you cleaned the ESP?

 

[JimmyJackson182]

Have you cleaned the ESP?

I have not-unless thats the igniter? I unscrew the plate weekly to vacuum it out for air flow.

 

[Washed-Up]

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.

 

[DAKSY]

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.

 

[JimmyJackson182]

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.

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?

 

[DAKSY]

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.co...zRF7AMDEKOZ_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...

 

[Tim_M]

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.

 

[Lisa G]

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.

Tim

Where did you order the switch? Thank you.

 

[Tim_M]

I think I got it from Brunners but unfortunately they no longer in business. You should be able to find them on EBay.