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Samsung Refrigerators

Error Code 1

Room temperature sensor circuit failure detected

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 1 (RR39/RR14/RZ32/RZ11/RQ32)

What This Means

Slipped out sensor housing; Wire cut or short; Sensor pickup temperature over +65°C or under -50°C; Defective sensor connection

What actually causes this:

The refrigerator's fridge compartment temperature sensor wire came loose, was cut, or the sensor itself failed and now reads impossible temperatures

First Thing to Check

Unplug the refrigerator and check if the temperature sensor wire is still connected to the main control board

Parts Involved

Temperature SensorMain PCB CN30 connector

How to Fix

  1. 1

    Check voltage between MAIN PCB CN30 #5 AND #6 (should be 4.5V~1.0V)

  2. 2

    Verify sensor housing is properly seated

  3. 3

    Check wiring for cuts or damage

This Error Applies To

Samsung RR39T74 Series Refrigerators

Service manual exact match: RR39T74Service manual exact match: RR14T74Service manual exact match: RZ32A74Service manual exact match: RQ32T76Service manual exact match: RR39A76Service manual exact match: RZ32T77Service manual exact match: RZ11T74Service manual exact match: RR39T76+2 more

Related Error Codes

3

Exterior room temperature sensor circuit failure

7

Freezer defrost heater approaching shutdown failure within 5 minutes

11

Compressor motor drawing excessive current indicating short or mechanical jam

15

Inverter power module temperature exceeded safe limit and shut down

2

Defrost cycle temperature sensor circuit failure

6

Freezer defrost heater circuit malfunction or stuck heater

10

Compressor power control IC fault or compressor winding fault detected

14

AC mains voltage is too high, exceeding safe operating range

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