Error code reference

ASKO Washer Error Code H8

Washing heater overheating

Washing heater overheating - Washing heater temperature increases by 10°F (5°C) or more within 30 seconds, indicating no water in tub.

First step from the service manual

Check water level sensor and fill system; check heating element and thermistor.

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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H8 on my ASKO Washer

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Washing heater overheating - Washing heater

From Service Manual 295942, p.34:

1.Check water level sensor and fill system; check heating element and thermistor.

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 H8.

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