H1
Amica
Sensor Short-Circuit (High Temperature Indication)
Display shows H1; temperature reading extremely high or shows dashes
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted NTC sensor, Water ingress into sensor connector, Pinched sensor wires, Control board sensor input short
How to Fix / Troubleshooting
Safety: Unplug the appliance before testing sensors.
Steps:
- 1. Identify which compartment shows H1: Check whether the fridge or freezer display is affected to locate the relevant sensor.
- 2. Access the sensor: Remove the appropriate inner cover and locate the NTC sensor.
- 3. Inspect for moisture and damage: Dry any condensation, check for crushed or exposed wires, and reseat the connector.
- 4. Measure resistance: A reading near 0 Ω indicates a shorted sensor. Replace the sensor.
- 5. If sensor is OK: Persistent H1 with a good sensor suggests a short on the board; replace the main control board via a professional.
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Repair Difficulty
Medium
3/5
Required Part
NTC Temperature Sensor
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