How do I fix error code 66C on my Samsung RF28K9070AA?

1. undefined: Separate MAIN PCB CN51 and CN76 wires 2. undefined: Check resistance between CN51 #9 and CN76 #2 3. undefined: If 0 Ohm, check for short-circuit 4. undefined: If ∞ Ohm, check for open-circuit or loose connection

Samsung RF28K9070AARefrigerator

Error Code 66C

Q: What does error code 66C mean on a Samsung RF28K9070AA?

Door handle heater not working Connector slipped out; Open contact in circuit; Wire not connected properly; Wire cut; Heater failure

Door handle heater not working

Moderate

Address soon - your appliance may not work properly

Also displayed as: 66C

What This Means

Connector slipped out; Open contact in circuit; Wire not connected properly; Wire cut; Heater failure

What actually causes this:

Door handle heater wire loose or disconnected

First Thing to Check

Check if door handle heater connector is attached

Parts Involved

Door Handle Heater

How to Fix

1
Separate MAIN PCB CN51 and CN76 wires
2
Check resistance between CN51 #9 and CN76 #2
3
If 0 Ohm, check for short-circuit
4
If ∞ Ohm, check for open-circuit or loose connection

Other Error Codes for RF28K9070AA

22C

Fridge fan motor is not operating

31C

Cool Select fan motor is not running

46C

I/O Expander is not responding to main board

21C

Freezer fan motor is not working

41C

Main and panel boards are not communicating

44C

Compressor inverter is not communicating with main board

Fridge defrost sensor is not working

Freezer defrost sensor is not responding

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