E14
SPRSUN Defrost Sensor / Defrost System Fault

Display shows E14; unit may start and stop repeatedly without heating 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

Defective defrost temperature sensor, Sensor not properly attached to coil, Faulty defrost control logic on main PCB, Ice buildup preventing accurate sensing

How to Fix / Troubleshooting

Safety first: Turn off power before accessing sensors or coils.

  • Inspect for ice: Check the evaporator coil and base pan for heavy ice accumulation. If present, turn the unit off and allow it to fully defrost.
  • Locate defrost sensor: Find the sensor clipped to the coil or refrigerant line used for defrost control. Ensure it is firmly attached and in good contact.
  • Check wiring: Inspect the sensor cable and connector at the main PCB for damage or loose fit.
  • Restart: After defrosting and checking connections, restore power and clear the E14 code. Monitor the next defrost cycle.
  • Replace sensor/board: If E14 recurs and the coil is not excessively iced, the defrost sensor or control board may need replacement by a technician.
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Repair Difficulty

Medium 3/5

Required Part

Defrost Temperature Sensor
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