Welcome Back to Pellet Tech 101!
In today’s video we cover inspection and replacement of the Harman Stove Control/Circuit Board Fuse. Most Harman Pellet, Corn and Coal stove models will have a very similar access to the control board fuse as we show in the Harman Accentra video here. Knowing how to properly and safely access this fuse for inspection and/or replacement may come in handy down the line.
Depending on the Harman model, different fuse sizes and amperage ratings will vary a bit. It’s import that you inspect and read the details on the fuse for certainty on replacement. If you are have questions regarding the correct fuse for your model just leave us a comment below, we are happy to assist and guide you in the right direction.
If you come across a blown fuse or repeated blown fuses, it’s important to take a closer look at why the fuse may be blowing. Thorough inspection of the circuit board, wiring and outlet is a great place to start; always check the simple things first. Make sure your stove is off and unplugged anytime you are working within the circuitry of the stove.
We always recommend that a surge protector is in place between the stove power cord and wall outlet. Your surge protector should be a minimum rating of 1000 Joules for pellet, corn and coal stoves, fireplace inserts, furnaces and boilers.
Browse Fuse Replacements
Surge Protector Reference
Browse Harman Control Boards
Further Questions or Technical Assistance Needed Please Leave us a Comment Below.
In your experience is it worth buying the OEM XXV distribution blower vs a AM one? Who makes your AM blower? My original one lasted 6 yrs and started squeaking badly. I bought an AM replacement that lasted just short of 5 years and is almost dead doesn’t run but is buzzing.
Same question re your control board for the XXV, OEM vs AM. The stove will not shut off with out running it out of pellets and unplugging it. If I unplug it for 5 minutes or longer then plug it in it works correctly for a while. do you think that is a board problem?
Thanks
Thanks for contacting us Scott.
Regarding the OEM vs aftermarket blowers: The aftermarket are made to exact spec of the OEM. They are imported from China. The OEM are generally imported from a manufacturer in Taiwan. Overall life expectancy and performance has been virtually identical between the OEM and aftermarket. 4-7 seasons is the average lifespan of a blower based on how often it’s used and how well it’s taken care off. We recommend regular cleaning of the impeller fins which will help with longevity and air circulation. https://pellethead.com/product/harman-xxv-xxv-tc-p35i-accentra-cast-distribution-blower-fan-oem/
Regarding the control board/circuit board, we only carry the OEM boards for Harman; sometimes we will have a refurbished OEM board available. For circuit boards, we do recommend OEM due to the nature of them. https://pellethead.com/product/harman-platinum-4-output-circuit-board-control-panel-oem/
Regarding the issue you mentioned of the stove not shutting off, we would first recommend you inspect and clean the ESP probe in the exhaust. The ESP probe is what signals to the control board for shutdown based on exhaust temperature. Let’s first clean it and see if that solves the problem. Video on that here. https://youtu.be/kt7nnGMYU-k?si=KHuwrm2OQextdgCT
Keep us posted, happy to help!