Electrolux Outdoor Ambient Temperature Sensor Fault

Display shows F3, unit may stop heating or cooling

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.

Possible Causes

Open or shorted outdoor ambient NTC, Sensor exposed to direct sunlight or heat source, Damaged sensor cable, Faulty outdoor PCB

Safety: Turn off the outdoor unit breaker.

Steps:

Locate sensor: Find the outdoor ambient sensor usually clipped near the air intake grille of the outdoor unit.
Check placement: Ensure it is not touching hot discharge pipes or in direct sunlight. Reposition if necessary.
Inspect wiring: Look for cuts or rodent damage. Repair or replace as needed.
Replace sensor: If resistance is out of spec, install a new outdoor ambient NTC sensor.

Medium 3/5

Outdoor Ambient Temperature Sensor (NTC)

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