
Harman Control Board Fuse (5 Amp): 3-20-49446
ThisĀ 5Ā Amp, 20mm, control board fuse is located on the backside of your Harman Stove Circuit board. Most units made after 2013, Revisions E and up, use thisĀ shorter fuse.
MostĀ stoves and inserts madeĀ priorĀ to 2013, with auto ignition, Revisions E and under, will use a 30mmĀ 6 Amp fuse,Ā 3-20-49447, those without an igniter will use this fuse, also use a 5 AMP fuse but it is the larger 30mm size, part 1-00-05237
Before ordering a fuse, unplug your unit, removeĀ your fuse from your controller and measure the length.
- All 30mm fuses (1.1811") in stoves without an igniter are 5 Amp.
- All 30mm fuses (1.1811")Ā in stoves with an igniter areĀ 6 Amp.
- All 20mm fuses (0.787402") are 5 Amps.
- Sometimes controllers have been replaced since your stove was installed, your actual fuse type may be different the controller was updated.
Check out theĀ TROUBLESHOOTINGĀ tab regarding fuses.

Ā
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Harman Control Board Fuse (5 Amp): 3-20-49446
ThisĀ 5Ā Amp, 20mm, control board fuse is located on the backside of your Harman Stove Circuit board. Most units made after 2013, Revisions E and up, use thisĀ shorter fuse.
MostĀ stoves and inserts madeĀ priorĀ to 2013, with auto ignition, Revisions E and under, will use a 30mmĀ 6 Amp fuse,Ā 3-20-49447, those without an igniter will use this fuse, also use a 5 AMP fuse but it is the larger 30mm size, part 1-00-05237
Before ordering a fuse, unplug your unit, removeĀ your fuse from your controller and measure the length.
- All 30mm fuses (1.1811") in stoves without an igniter are 5 Amp.
- All 30mm fuses (1.1811")Ā in stoves with an igniter areĀ 6 Amp.
- All 20mm fuses (0.787402") are 5 Amps.
- Sometimes controllers have been replaced since your stove was installed, your actual fuse type may be different the controller was updated.
Check out theĀ TROUBLESHOOTINGĀ tab regarding fuses.

Ā
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Description
ThisĀ 5Ā Amp, 20mm, control board fuse is located on the backside of your Harman Stove Circuit board. Most units made after 2013, Revisions E and up, use thisĀ shorter fuse.
MostĀ stoves and inserts madeĀ priorĀ to 2013, with auto ignition, Revisions E and under, will use a 30mmĀ 6 Amp fuse,Ā 3-20-49447, those without an igniter will use this fuse, also use a 5 AMP fuse but it is the larger 30mm size, part 1-00-05237
Before ordering a fuse, unplug your unit, removeĀ your fuse from your controller and measure the length.
- All 30mm fuses (1.1811") in stoves without an igniter are 5 Amp.
- All 30mm fuses (1.1811")Ā in stoves with an igniter areĀ 6 Amp.
- All 20mm fuses (0.787402") are 5 Amps.
- Sometimes controllers have been replaced since your stove was installed, your actual fuse type may be different the controller was updated.
Check out theĀ TROUBLESHOOTINGĀ tab regarding fuses.

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