EdgeStar
Temperature Calibration / Sensor Drift
Temperature display is inaccurate compared to a separate thermometer inside the cabinet.
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Possible Causes
Aging thermistor, Poor sensor placement, Control board calibration drift, Air stratification due to fan issues
How to Fix / Troubleshooting
Safety: Unplug the unit before moving sensors or accessing the control board.
Steps:
- Verify with multiple thermometers: Place at least two accurate thermometers on different shelves to confirm actual temperatures.
- Adjust loading and airflow: Ensure vents are not blocked and the fan is operating to minimize hot and cold spots.
- Inspect sensor placement: Confirm the cabinet thermistor is in a representative location, not directly in front of the fan or against the wall.
- Replace thermistor: If the display remains consistently off by a large margin, replace the cabinet temperature sensor.
- Control board replacement: If a new sensor does not correct the reading, the control board’s calibration may be off and require replacement.
Tip: Some minor variation (1–2°F) between display and actual temperature is normal.
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Repair Difficulty
Easy
2/5
Required Part
Cabinet Temperature Sensor (Thermistor)
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