Error code reference

Merloni Dishwasher Error Code AL 08

Timeout heating water

Timeout heating water - water temperature does not increase during 60 minutes of washing.

First step from the service manual

Check if NTC is detached from casing or not calibrated; verify heating element and NTC connections.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
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M+ Max·Merloni Dishwasher

AL 08 on my Merloni Dishwasher

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Timeout heating water - water temperature does

From Service Manual 201739, p.31:

1.Check if NTC is detached from casing or not calibrated; verify heating element and NTC connections.

2.Disconnect the sensor and measure resistance at the sensor body. Expected: 10 kΩ to 12 kΩ at 77°F (25°C).

3.Check the sensor harness for opens and shorts. Back-probe the sensor pins at the control board connector; a reading outside 5 kΩ to 50 kΩ indicates a failed sensor.

Part WP8577274

Temperature thermistor

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First step from the service manual

Get the full diagnostic procedure for AL 08.

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