Always disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.
Westinghouse error code DOOR indicates: Door not closed at cycle start.
The primary root cause for Westinghouse code DOOR is: An attempt was made to start a cycle while the door was not fully latched..
To resolve error code DOOR: Open the door and close it again firmly until you hear a distinct click. Then, press the Start button again.
Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Westinghouse code DOOR persists, the physical component causing An attempt was made to start a cycle while the door was not fully latched. must be inspected or replaced.
Set a digital multimeter to ohms (Ω). Disconnect power and test Protective Earth Bonding & Incoming Mains Voltage across Between unpainted chassis metal and mains plug earth pin; incoming terminal block L-N. Expected nominal reading is Earth Ground Continuity: <0.1Ω (Chassis metal to mains plug earth pin). Mains: 230V AC ±10%.. Tolerance: Protective conductor impedance must remain <0.1Ω. Line voltage 207V–253V AC under load..
Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.
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Cross-referenced diagnostic codes for technicians inspecting similar component subsystems.