Has Stopped Opening Cans. Turns But Does Not Cut

Servicing the Switch: An electric can opener is turned on and off with a contact switch activated by the appliance's operating lever. A defective switch may prevent the appliance from working at all. Here's how to service the switch:

Step 1: Remove the can opener's cover so you can watch how it activates.

Step 2: Press the lever down to make sure it makes contact with the switch. If not, check for and remove any obstruction, or realign the lever so that it makes contact.

Step 3: If the switch still doesn't work, unplug it and test it with a continuity tester or multitester.

Step 4: If the contacts are corroded, use emery paper clamped in pliers to clean them. If a contact is broken or the switch is defective, replace it.

Step 5: Remove and mark all wires, unfasten the switch, and remove it from the housing. Replace it with a switch identified as a replacement part for your appliance.

Servicing the Gears: Gears translate the motor's power into torque that turns a can. This requires a feed gear at the edge of the can and at least one other larger gear inside the appliance. To check and replace gears:

Step 1: Inspect the feed gear and clean or replace if worn or broken.

Step 2: Check internal gears by opening the appliance case and carefully removing gears. Teeth may be missing or warped, or the gears may simply need lubrication with a white lubricant. If the gears need to be replaced, make sure the replacement gears match exactly in every measure, including width, circumference, and number of teeth.

Step 3: If a replacement to a broken gear cannot be found, consider using a plastic or metal glue, as required, to repair the break. When done, carefully reassemble the gears and case, then test the appliance.

Please check this link for reference:-

https://home.howstuffworks.com/how-to-repair-small-appliances6.htm

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