My AP5660PE fuse always blows 8 minutes after powering on. I used a clamp meter to test the amp of devices. Igniter : 2.5A; auger motor: 2A; exhaust blower: 4.7A,
room blower: 0.8A . I disconnected room blower and kept other running, 8 mins blow again. I disconnected igniter & auger motor & room blower and left combustion blowed ON
only, No blow, lasting 30mins. Could any expert tell me which is the root reason for short-circuit ? Thanks in advance ! Max