Welcome from Ontario, Canada. If you have a warranty on it I would bring it to an authorized dealer or you can void the warranty. Since you don' t like the dealer that sold it to you, perhaps you can find another in your area that will honor the warranty. If you don't have a warranty, look into the prices for a general cleaning a maintainance from a shop you like. When a good repairman cleans your machine, they should also "dress" the moving parts with a gel like lubricant. I would not spray anything into a computerized machine myself in case it migrated into the circuit board.