SH
Kenmore
Shorted Temperature Sensor Circuit
Display shows SH for a temperature, unit may overcool or run continuously.
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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 thermistor, Moisture in sensor connector, Pinched harness causing wire short, Faulty main control board input
How to Fix / Troubleshooting
Safety first: Disconnect power before working on sensors or wiring.
Steps:
- 1. Identify affected zone: SH next to freezer or refrigerator temp indicates which sensor is shorted.
- 2. Inspect sensor and connector: Look for water intrusion, corrosion, or damaged insulation at the sensor location.
- 3. Resistance test: Disconnect the thermistor and measure resistance. A reading near 0 ohms indicates a shorted sensor.
- 4. Replace thermistor: Install a new OEM thermistor and ensure the connector is dry and clean.
- 5. Check harness: If the sensor tests normal when disconnected but SH persists when connected, inspect the harness for pinched or rubbed-through wires causing a short.
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Repair Difficulty
Medium
3/5
Required Part
NTC Thermistor
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