F3
Olimpia Splendid Outdoor Ambient Temperature Sensor Error

F3 displayed; outdoor unit may not start or may shut down quickly

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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

Failed outdoor ambient NTC sensor, Sensor cable cut or weather-damaged, Loose connector on outdoor PCB, PCB sensor input failure

How to Fix / Troubleshooting

Safety: Isolate power at the outdoor disconnect before opening the outdoor unit.

  • Locate sensor: On Olimpia Splendid outdoor units, the ambient sensor is typically mounted near the air intake grille or on the coil frame.
  • Inspect condition: Check for UV damage, broken insulation, or corrosion on the sensor and wiring.
  • Reseat connector: Follow the cable to the outdoor PCB and reseat the connector.
  • Measure resistance: Test the sensor with a multimeter. Replace if readings are abnormal.
  • Replace sensor: Install a new "Outdoor ambient NTC sensor" and secure it in the original location.
  • PCB issues: If F3 persists, the outdoor PCB may be defective and should be replaced by a professional.
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Repair Difficulty

Hard 4/5

Required Part

Outdoor Ambient NTC Sensor
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