4.3.2 Configuration Fault Code Reporting
The system fault, temperature, power, and blower LEDs cannot display all the possible
system faults. Therefore, a flashing system fault LED indicates that the blower LEDs are
displaying a two-digit, hexadecimal fault code. The upper LEDs (8–5) display the first
digit (the most significant digit); the lower LEDs (4–1) display the second digit (the least
significant digit).
The EMU can display configuration fault codes on the blower LEDs (see Table 4–4) only
when the system fault LED is flashing. To view fault codes on the blower LEDs, you
must press and hold the alarm control switch.
Once you press the alarm control switch, the EMU initiates the following actions:
1. Displays the first reported hexadecimal fault code on the blower LEDs three times in
succession.
•
The LEDs display the first reported fault code the first time for one second, then
go off
•
The LEDs display the first reported fault code the second time for one second,
then go off
•
The LEDs display the first reported fault code the third time for one second, then
go off
2. Displays the next reported fault code three times.
3. Displays all fault codes in sequence. Then, the cycle starts over.
Release the alarm control switch to stop the fault code display.
When multiple corrective actions are listed, complete the
first procedure and see if the problem is corrected. If the
problem still exists, complete the second procedure.
EK–SMCPR–UG. A01
Chapter 4. Error Analysis and Fault Isolation
NOTE
387404–001
4–9
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