Orion System SA E-BUS Controller - Manual (Page 55)

SA E-BUS Controller Technical Guide
Troubleshooting
55
LED Diagnostics
Diagnostic LED Operation
When power is fi rst applied, the STATUS 1 and STATUS 2 LEDs will
be off for 1 second. At this time, both LEDs will blink to indicate the
setting of the address switch and then will extinguish for 5 seconds.
Verify that the address switch setting is correct by counting the number
of blinks.
If the address switch is not correct, fi rst remove the communication
loop terminal plug from the controller and then from the power terminal
plug. Set the address dip switches correctly. See Figure 29 on page 36
for correct address switch setting instructions. After you are sure the
address switch setting is correct, fi rst reconnect the power connection
and then reconnect the communication loop connection to the controller.
NOTE: You must always cycle power to the Controller being
addressed after changing address switch settings in order for the
changes to take effect.
Reapply power to the controller and observe the blink code to verify
the address is set correctly. If the STATUS 1 and STATUS 2 LEDs now
blink the correct address, your controller is addressed correctly. If they
don’t light up at all, the controller is not operating correctly and could
be defective. Once the controller is done blinking the address, STATUS
2 LED will blink continuously for 30 seconds while the controller
calibrates. Once the controller is done calibrating, the LEDs will blink
a code every 10 seconds to indicate controller status. See Table 3 for a
list of the various blink codes and their meanings.
If all of these tests are made and the controller still doesn’t operate, please
contact WattMaster Controls Technical Support at 866-918-1100.
Blink Code Description
STATUS 1
LED
Blinks
STATUS
2 LED
Blinks
Normal Operation 0 1
Supply Air Temp Sensor Fail 1 2
Entering Air Temp Sensor Fail 2 2
Space Sensor Failure 3 2
Module Alarm 4 2
Mechanical Cooling Failure 1 3
Mechanical Heating Failure 2 3
Fan Proving Failure 3 3
Dirty Filter Alarm 4 3
Emergency Shutdown 5 3
Water Flow Alarm 6 3
Drain Pan Alarm 7 3
Low Supply Air Temp Alarm 1 4
High Supply Air Temp Alarm 2 4
Control Temp Cooling Failure 3 4
Control Temp Heating Failure 4 4
Push Button Override 1 5
Zone Override 2 5
Output Force Active 0 6
Table 3: Diagnostic LED Blink Code Interpretation