I'm trying to figure out why this fan is not working properly. We had a somewhat similar issue before, I thought maybe something simple like connection issue, bad cap, etc. Found the original cap had a bulge, but I think it still acted properly when I ohm tested it and applied a DC voltage to it. Found a replacement Dayton brand capacitor from Granger worked no issue, now acting up again.
This Dayton cap has no sign of bulging, my meter shows that the value is within spec, I applied 60V DC in both directions (as this is an AC cap) and it seemed to hold a charge, but it dropped surprisingly fast for only being connected to a digital meter. Not sure that is normal with these oil caps, or if they should keep the charge like an electrolytic.
I did some searching online and this issue seems to be either related to a run capacitor or a governor type issue. I can't imagine this fairly small motor on a fan having a governor. It seems like a fairly basic dual speed induction motor that needs a run capacitor. Fan runs on normal 15amp 120V AC 60HZ.
This Dayton cap has no sign of bulging, my meter shows that the value is within spec, I applied 60V DC in both directions (as this is an AC cap) and it seemed to hold a charge, but it dropped surprisingly fast for only being connected to a digital meter. Not sure that is normal with these oil caps, or if they should keep the charge like an electrolytic.
I did some searching online and this issue seems to be either related to a run capacitor or a governor type issue. I can't imagine this fairly small motor on a fan having a governor. It seems like a fairly basic dual speed induction motor that needs a run capacitor. Fan runs on normal 15amp 120V AC 60HZ.