Trane Voyager WS 150-24 Installation, Operation And Maintenance Manual page 42

Troubleshooting
Unit Economizer Control (ECA)
Troubleshooting
Table 13. Verify economizer status by economizer
actuator (ECA) LED indicator:
OFF: No Power or Failure
ON: Normal, OK to Economize
Slow Flash: Normal, Not OK to Economize
1/2 Second On / 2 Seconds Off:
Fast Flash:
Communications Failure
Pulse Flash: 2 Second On / 1/2 Second Off:
1 Flash:
2 Flashes:
3 Flashes: RA Humidity Sensor
4 Flashes:
5 Flashes:
6 Flashes: OA Humidity Sensor
7 Flashes:
8 Flashes:
9 Flashes:
10 Flashes:
11 Flashes:
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Error Code:
Error Code:
Actuator Fault
CO2 Sensor
RA Temp Sensor
OA Quality Sensor
OA Temp Sensor
MA Temp Sensor
RAM Fault
ROM Fault
EEPROM Fault
RT-SVX33E-EN