My system quit working altogether, with or without the remote. As Dr.Robert said a new circuit board cost $100.00 .
This was 10+ years ago. I bypassed the circuit board and wired the motor to a switched receptacle. The system works on high only. I usually only ran it on high anyhow. I bought an inexpensive remote control that worked up to 3 machines with a receptacle for each machine. I have the Jet air cleaner, dust collector for the saw and dust collector with a manifold for a bandsaw, 12" disk sander and jointer.. I believe this wireless remote has a 100'-0" range.
Bought it at Lowes, Paid about $20.00 I think. Bought another set for Christmas decorations. The remote is for indoor use but the outside receptacle is under a porch so I used it there.
mike