Fisher & Paykel Freezer Error Code 5: FC Sensor Above Range

When the freezer shows 5, the sensor in question is the one in the freezer compartment, known as the FC sensor. Its resistance is above 45K ohms and therefore outside the normal range. Unlike code 3, which involves every sensor, this fault names only one.

Technician sequence

1. Inspect the sensor’s connection at the power module.
2. Replace the sensor when the connection turns out to be sound.

Why the number is a fault

These sensors are thermistors, meaning their resistance shifts as the temperature shifts. The service manual’s table shows 25.17K ohms at -30 degrees C, falling to 6.000K ohms at 0 degrees C. A value above 45K lies outside that table altogether.

A diagnostic mode for reading temperatures

• Enter it by holding MODE while pressing the temperature UP button.
• The first reading is the PC sensor temperature. Another press of UP moves to the FC sensor.
• Work out the temperature by adding up the values of the lit LEDs and subtracting 40.
• If you do not leave the mode, it ends by itself after 5 minutes. Door alarms do not work while it is running.

This is a service procedure. Use it only if a technician has asked you to.

Codes close to this one

• Code 6: the FC sensor again, but reading below range
• Code 9: the PC (fresh food) sensor reading above range
• Code 3: every sensor above range

Freezer sensor repair in Los Angeles

Ring (310) 872-1939 about a Fisher & Paykel freezer that shows 5, and keep the model number at hand. Details of the refrigerator and freezer repair we do are on the service page.

Source: Fisher & Paykel Active Smart Refrigerators USA service manual 517775, sections 1.0 and 2.0