Trane TC*150-301 Installation Operation & Maintenance page 54

Troubleshooting
4. Locate the RTRM (J6). Connect two (2) wires to terminals J6-1 and 2.
5. Connect the sensor (OAS) using two wire nuts to the two (2) field supplied wires that were
Unit Economizer Control (ECA) Troubleshooting ReliaTel Control
Verify Economizer Status by Economizer Actuator (ECA) LED indicator:
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Error Code:
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connected to terminals 1 and 2 on J6.
OFF: No Power or Failure
ON: Normal, OK to Economize
Slow Flash: Normal, Not OK to Economize
Fast Flash - 1/4 Second On / 2 Seconds Off:
– Error Code: Communications Failure
Pulse Flash: 1/30 Second On / 1/4 Second Off: (2 Seconds between pulse sequences)
1 Flash: Actuator Fault
2 Flashes: CO2 Sensor
3 Flashes: RA Humidity Sensor
4 Flashes: RA Temp Sensor
5 Flashes: OA Quality Sensor
6 Flashes: OA Humidity Sensor
7 Flashes: OA Temp Sensor
8 Flashes: MA Temp Sensor
9 Flashes: RAM Fault
10 Flashes: ROM Fault
11 Flashes: EEPROM Fault
RT-SVX25C-EN