Harman 61a blowing fuses as soon as plugged in.

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Njsabresfan66

New Member
Sep 27, 2023
2
Hillsborough, NJ
Was going to start up for the fall when I noticed no power. I checked the fuse and it was blown. I purchased and replaced the fuse and the second I plugged in, it blew again. I disconnected the igniter and checked each motor individually and they all worked fine when connected to a different power source. Connections all look pristine and no wires frayed or bad. I am thinking the controller board, but wanted to post before I purchased. Any advise?
 
Any obvious black/burned areas on the main board? If you disconnect igniter and all motors then power on does the fuse still Blow? If not try re connecting 1 item at a time (with power off of course) and see if one is causing the issue. If it blows right away with nothing connected, it sounds like a failure on the board.

sam
 
Any obvious black/burned areas on the main board? If you disconnect igniter and all motors then power on does the fuse still Blow? If not try re connecting 1 item at a time (with power off of course) and see if one is causing the issue. If it blows right away with nothing connected, it sounds like a failure on the board.

sam
None that I could see. I did disconnect everything and it still blew. We did have some power fluctuations during the summer and I forgot to unplug it. Just wanted to be sure before I order another board.