57 PB
TROUBLESHOOTING
Error Codes and Alarm Status
Unit Control Panel
The display shown below has four digits. The left two digits indicate the error code # ( 1 to 24 ), The On/Off icons above these
two digits indicate the currents state of the error code. The right two digits show the history count (up to 99) of the associated
ERROR CODE. THE DISPLAY CONTAINS A MAINTENANCE ICON (WRENCH) THAT WILL ILLUMINATE TO INDICATE WHEN THE
UNIT NEEDS SERVICE.
THIS WRENCH INDICATES AN ERROR CODE # IS ON (ACTIVE). TO FIND OUT WHICH ONE, CHECK ALL ERROR CODES.
CHECK ERROR CODES
1. Press the Enter key to activate the display.
2. Each press of the scroll key display the next error code.
Clear History Counters
1. Press & hold the Enter key and the Scroll Key for 6 seconds.
FIGURE 715 (SERVICE MODULE CONNECTOR)
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