If the control panel fuse does not blow for about 15 to 20 mins after the On button is pressed then there's a good chance the convection blower caused the fuse to blow. At 7 seconds when the fuse blew is when the auger started up! I replaced the auger motor and the stove was fixed! See pic 3 below.Ħ. However when tested customer2 igniter, it read a whopping 10 amps and within seconds the windings caught on fire. It should read about what is stamped on the motor tag, which was 0.72 amps for my customer's auger motor. Using the multi-meter, plug the auger motor into the wall outlet with the clamp around 1 wire. That was not too high so I continued testing other parts.ĥ. For my customer it read 1.5 amps for a 1.0 amp motor and then it settled down to 1.0 amp which is stamped on the Fasco motor tag. At start up, it should read about 0.5 amps more than rated for on the motor tag. Using the multi-meter, plug the exhaust blower into the wall outlet with the clamp around 1 wire.
That was not too high (over the control panel fuse which is 5 amps in my case) so I continued testing other parts for customer1įor customer2 even though the igniter read 47 ohms with the ohm meter when plugged directly into the wall AC outlet, the igniter smoked up and one of the wires fell off! Replacing this igniter and the control board fuse fixed the issue and the stove worked fine. The multi-meter read 2.1 amps for customer1. Test the part in each step until you get a reading that is too high.ģ.Take a good multi-meter and put the clamp around one of the igniter wires and plug it into the wall outlet with an AC test cord. Start with the igniter as it is the most common part to cause this issue. Use an AC test cord and multi-meter to test how much current each of those parts draws. If you are still not sure which part is causing the fuse to blow, the four most common parts to cause this issue are the igniter, auger motor, exhaust blower, and convection blower.Ģ. This could be the exhaust blower or igniter causing the fuse to blow.However for a room blower it might take 15-20 minutes to blow the fuse. If the fuse blows after just a few seconds, it may be a part that activates right at start up.Ĭustomer1 - The fuse blew 7 seconds after pressing the On button, which indicated it may be the auger motor since it does not get power right awayĬustomer2 - The fuse blew immediately. Put in a new fuse on the control board/panel and time how many minutes or even seconds it takes from pressing the On button to when the fuse blows.This can help pinpoint which part may be causing the fuse to blow. When the control panel fuse blows, finding the cause may be very difficult so here are some steps to help pinpoint the problemġ. Click here for additional info on pellet stove control panel failures,
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