Error Code FZ-DMH
Flex zone temperature control heater failure
Moderate
Address soon - your appliance may not work properly
Also displayed as: FZ-DMH LED blinks
What This Means
Heater connector loose; Heater element failure; Damper mechanism stuck
What actually causes this:
Damper heater burned out preventing mid-drawer temperature adjustment
First Thing to Check
Check if mid drawer maintains selected temperature
Parts Involved
How to Fix
- 1
After disconnecting CN40, measure resistance CN40-25 to CN40-27: 135 ohm ±7%
- 2
0 ohm = short, ∞ ohm = open
- 3
Power OFF
This Error Applies To
Samsung RF28R7201 Series Refrigerators (2010) (2010–present)
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