Fisher & Paykel ActiveSmart Refrigerator Code 23: Second Fresh Food Sensor Hot

What Code 23 means

On original E-series ActiveSmart refrigerators like the E522BLXU, Code 23 means the second fresh food sensor, PC2, reads under 660 ohms, shown as PC2 sensor hot. That points to a shorted sensor or wiring. The control gets a false high-temperature picture and may over-cool the fresh food side. The LCD or beep pattern shows the code. Fresh food may run colder than you set it.

Common causes of Code 23

PC2 sensor shorted
Pinched or worn PC2 wire
Moisture at the sensor plug

✓ One safe check you can try

1. Unplug the unit for five minutes and restart. 2. Check whether lettuce or drinks are freezing. 3. Keep food away from the rear vents. 4. If Code 23 returns, call us. Avoid opening the doors often. Note anything odd about shelf temperatures so we can pass on what you saw before the visit.

! Why to stop there

A short reads as heat, so the cabinet may run colder than you want.
The sensor is behind the liner.
We test the sensor and quote the repair in writing.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Code 23Code 23 questions

How is Code 23 different from Code 22?

Code 22 means PC2 reads high, above 45K ohms, or cold. Code 23 means it reads under 660 ohms, or hot. It is one of two sensors in the fresh food area.

Why would food freeze?

A falsely hot reading can make the control cool more than needed. The control reads heat that is not there, so it keeps on cooling. Checking it is quick.

Is it a quick job?

Usually a single sensor. You get a written price and a 30-day workmanship warranty. The price is in writing before work begins. Ask us for details on the visit.