Zerowatt Loc

Zerowatt error code LOC indicates: Zerowatt ZO / MasterCook Pyrolytic Oven: Child safety lock active Loc; control panel keypad inputs are locked to prevent accidental burner/oven activation..

The primary root cause for Zerowatt code LOC is: On Zerowatt ovens utilizing MasterCook convection heating elements, mechanical capillary thermostat regulation, and tangential cooling fan: Key lock feature engaged by user holding the Keypad Lock or Clear/Off pad for 3 to 5 seconds..

To resolve error code LOC: Press and hold the Key Lock / Padlock icon pad continuously for 3 to 5 seconds until confirmation beep sounds and 'Loc' message disappears. Set knobs to zero, disconnect cooker switch at the wall for 45 seconds, reconnect power and set mechanical timer.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Zerowatt code LOC persists, the physical component causing On Zerowatt ovens utilizing MasterCook convection heating elements, mechanical capillary thermostat regulation, and tangential cooling fan: Key lock feature engaged by user holding the Keypad Lock or Clear/Off pad for 3 to 5 seconds. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Immersion / Air Heating Element & Klixon Thermostat across Between element terminals (unwired). Insulation to earth casing: >20MΩ (OL). Expected nominal reading is 25Ω–28Ω (230V / 2000W) / <0.5Ω (Safety Klixon closed). Tolerance: Formula R = V²/P (±5%). Any earth leakage reading below 2MΩ will trip the domestic 30mA RCD breaker..

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.