B
FAULT TESTING
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
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Repair and Service Manual
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LED Fault Code Chart
DIAGNOSTICS: Diagnostics information can be obtained
by two methods:
•
by reading the display on a 1313 programmer or
•
by observing the fault codes issued by the Status
LEDs on the top of the controller.
The 1313 programmer displays all faults that are currently
set, as well as a history of the faults that have been set
since the history log was last cleared. The 1313 displays
the faults by name.
The pair of LEDs built into the controller (one red, one yel-
low) produce flash codes that display all the currently set
faults in a repeating cycle. Each code has two digits. The
red LED flashes once to indicate that the first digit of the
code will follow, and the yellow LED then flashes the
appropriate number of times for the first digit. The red
LED flashes twice to indicate that the second digit of the
code will follow, and the yellow LED flashes the appropri-
ate number of times for the second digit.
Fig. 6 Summary of LED Display Formats
The numerical codes used by the yellow LED are listed in
the fault diagnosis chart, which also lists possible fault
causes and describes the conditions that set and clear
each fault.
The two LED’s have four different display modes that indi-
cate the type of information they provide.
Example: Battery Undervoltage (code 23).
The controller’s two LEDs will display this repeating pattern:
RED
(first digit)
(2)
(second digit)
(3)
RED
YELLOW
YELLOW
In the Diagnostics menu of the 1313 programmer, the words
“Undervoltage Cutback” will be displayed; the real-time battery
voltage is displayed in the Monitor menu / Battery sub-menu:
(”Keyswitch Voltage”).
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PRELIMINARY
