Based on the symptoms described, the issue with the Curtis Instruments 1244-4417 D.C. Motor Controller seems to be related to erratic motor behavior, such as sudden stops and jerky movements. Further diagnostics may be needed to determine the exact cause of the problem.
—> Purchase or Repair:
If you need your Curtis Instruments unit tested or repaired, 
give us a call at 1-336-969-0110.
  We offer free estimates and extended warranties on the work performed.
  Shipping/Receiving:
  Industrial Electronic Repair
  
  145 Rockwell Place Ct
  Tobaccoville, NC 27050
  Phone: 1-336-969-0110
Industrial Electronic Repair
                145 Rockwell Place Ct
                Tobaccoville, NC 27050
                🚑 Rush repair shipments only — no walk-ins.
Industrial Electronic Repair
                931-E S. Main St #204
                Kernersville, NC 27284
                📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.
—> Purchase or Repair: