Originally Posted by blc0816
Does this mean the relay might be bad?
Or it could be a loose connection. Wiggle wires and watch the fan.
You could also try sanding the relay contacts with a strip of 100 grit or finer paper and see if that temporarily clears it up. If so, you need a new relay.
A replacement from Grainger that is electrically equivalent will almost certainly be cheaper than the maker's part.
There may also be the OEM logo, name and part number on the relay and so you can find the specs online. Typical relay OEM names are Honeywell, Omron and Potter & Brumfield.