DCN: 141-00930-07 09/06/04
7
“CF” or “SF” Error Displays
If the WDU is not properly wired or if communications to the Control Unit is interrupted, the LCD display will
display “CF” to denote Communication Failure. Momentary display of “CF” caused by bad or lost data, will
clear automatically when data communication is restored.
If the “CF” continues to be displayed, check wiring for problems. A continuous “CF” display may indicate a
problem with the Control Unit or the WDU itself.
An “SF” display indicates a temperature sensor failure. If this is displayed continuously, the sensor is failing
to respond and must be replaced. This can also be displayed when attempting to view the outside
temperature if this sensor has failed or been disconnected.
Summary of Contents for TR16
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