Door or hood switch error; display shows E6 and machine will not start a cycle.

Safety first: Turn off power to the dishmachine before adjusting or replacing switches.

Step-by-step checks:

• Verify door/hood closure: Ensure the door or hood is fully closed and latches properly. Check for bent hinges or obstructions preventing full closure.
• Inspect switch actuator: Locate the door or hood interlock switch. Confirm that the actuator arm or plunger is being fully engaged when the door/hood closes.
• Test the micro-switch: With power OFF, disconnect the switch and use a multimeter to check continuity between common and normally-open/closed terminals as you operate the switch. Replace the switch if it does not change state reliably.
• Check wiring: Inspect the harness from the switch to the control board for cuts, loose connectors, or corrosion. Repair or replace damaged wiring.

When to call a technician: If the door or hood is physically damaged or misaligned, or if the fault persists after switch replacement, a technician should evaluate the frame and interlock system.