Merloni Dishwasher Error Codes

11 error codes for Merloni dishwasher models. Each links to the full diagnostic procedure from the service manual.

CodeDescription

AL 01Overflow alarm AL 02Solenoid valve broken AL 03Timeout draining AL 04NTC thermistor circuit not compliant AL 05Clogged filters alarm AL 06Timeout filling AL 08Timeout heating water AL 09Software setup/recognition error AL 10Heating element circuit not compliant AL 12Hardware version alarm AL 99Communication not possible

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Step-by-step tests with expected resistance, voltage, and continuity values
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M+ Max·Merloni Dishwasher

AL 01 on my Merloni Dishwasher

M+

Overflow alarm - water detected in base pan by

From Service Manual 201732, p.24:

1.Check for leak from water line; inspect all pipes, sleeves, and water line components for leaks.

2.Measure line voltage at the power cord terminal block. Expected: 120 VAC (L1 to neutral) or 208 to 240 VAC between L1 and L2 under load.

3.Inspect the cord strain relief and terminal block screws for signs of arcing or heat discoloration. Loose connections here mimic an intermittent power failure to the control board.

Part W10911048

Power cord assembly

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