If you’re ordering for a service job, Switch is supplied as part 12-2731-01. Order by part number to avoid mismatches. Check nearby components for secondary damage so the new part isn’t stressed immediately after installation. Check nearby components for secondary damage so the new part isn’t stressed immediately after installation. A new Switch often clears not starting issues caused by wear or damage. Reinstall carefully so nothing pinches, rubs, or binds once the unit is back together. After replacement, run a short test cycle and watch for leaks, vibration noise, or recurring faults. Once the root cause is corrected, cycle behavior should stabilize and performance should return to normal. Intermittent switch behavior can look like larger electrical problems. Switches provide on/off or position feedback used by controls and safety logic. Common complaints include unit not responding, not starting, or intermittent operation. Verify any model compatibility notes shown on the product page before completing the order. Keep the removed part until final testing is complete so you can compare fitment if needed. If the machine was down for a while, take the opportunity to clean the area around the repair. Verify any model compatibility notes shown on the product page before completing the order. Keep the removed part until final testing is complete so you can compare fitment if needed. If the machine was down for a while, take the opportunity to clean the area around the repair. Verify any model compatibility notes shown on the product page before completing the order. Keep the removed part until final testing is complete so you can compare fitment if needed. If the machine was down for a while, take the opportunity to clean the area around the repair.