April 19, 2023
By Lyle Weischwill
These error code explanations can help you diagnose a problem with your Whirlpool refrigerator. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for refrigerators, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your refrigerator.
Error Code
Condition
DIY advice
d on the refrigerator display
Air damper is stuck
Check/Repair
Unplug the refrigerator and examine the air damper that controls air flow from the freezer compartment to the refrigerator compartment for damage. If the air damper is broken, replace it.
How-to help
How to replace a diffuser in a side-by-side refrigerator
Possible parts
Air damper
C on the refrigerator display
Refrigerator compartment thermistor (temperature sensor) failure
Check/Repair
Unplug the refrigerator and reconnect the refrigerator thermistor wire harness if loose. Replace the wire harness if damaged. If the wire harness is okay, replace the refrigerator compartment thermistor.
How-to help
How to replace a refrigerator thermistor
Possible parts
Refrigerator compartment thermistor
C on the freezer display
Freezer compartment thermistor failure
Check/Repair
Unplug the refrigerator and reconnect the freezer thermistor wire harness if loose. Replace the wire harness if damaged. If the wire harness is okay, replace the freezer compartment thermistor.
How-to help
How to replace a refrigerator thermistor
Possible parts
Freezer compartment thermistor
CF on the freezer display
Communication failure between main control board and user interface control
Check/Repair
Unplug the refrigerator and check the wire harness connections on the user interface control and the main control board. Reconnect any loose wires. If the wire harness connections are okay, replace the user interface control. If the problem persists, replace the main control board.
How-to help
How to replace an electronic control board on the back of a refrigerator
Possible parts
User interface control, Main control board
18 degrees F (or -8 degrees C) temperature reading on the freezer display
Over-temperature condition
Check/Repair
Make sure that the refrigerator power cord is plugged into the electrical outlet securely. The over-temperature condition is often caused by a power failure . Press the freezer temperature keypad to reset the freezer temperature display once the freezer cools to its normal temperature.
Possible parts
Water filters
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