E163
Samsung Outdoor Discharge Temperature Sensor Error

E163 appears; unit may not cool or heat properly.

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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

Open or shorted discharge thermistor, Poor sensor contact on discharge pipe, Damaged sensor wiring, Outdoor PCB sensor circuit failure

How to Fix / Troubleshooting

Safety warning: The discharge pipe can be extremely hot. Ensure power is OFF and allow time for cooling before touching any pipes.

  • Step 1 – Locate sensor: In the outdoor unit, find the thermistor clipped to the compressor discharge pipe (small copper line leaving the compressor).
  • Step 2 – Check attachment: Ensure the sensor is firmly clipped and insulated. Re-secure if loose.
  • Step 3 – Inspect wiring: Look for cuts, rodent damage, or loose connectors on the sensor harness.
  • Step 4 – Replace sensor: If the sensor is cracked or corroded, replace it with the correct Samsung discharge temperature sensor.
  • Step 5 – If E163 persists: The outdoor PCB may misread the sensor and require professional diagnosis and replacement.
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Repair Difficulty

Medium 3/5

Required Part

Discharge Temperature Sensor
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