92 RT-SVP011E-EN
Troubleshooting
Invalid Active
Discharge Air
Temperature
Unit Warning Non-Latching
No Valid Input from BAS or Unit.
The mechanical cooling, heating and economizer
control will be disabled; however, the supply fan will
continue to run.
Remote
Invalid Active
Occupancy Input
Unit Warning Non-Latching
The input to the Hex IO module has failed.
The unit will fall back to the “Occupancy Input
Default” setting on the front panel.
Remote
Invalid Active Outdoor
Airflow
Unit Warning Non-Latching
No Valid Input from BAS or Unit.
Disables Traq airflow control.
Remote
Invalid Active Space
CO2
Unit Warning Non-Latching
No Valid Input from BAS or Unit.
Disables Traq airflow control.
Remote
Invalid Active Space
Pressure
Unit Warning Non-Latching
No Valid Input from BAS or Unit.
Statitrac control will be terminated and the Relief Fan
Speed and Relief Damper command will fall back to
OA Damper Tracking.
Remote
Loss of Charge
Detected CktX
where X is “1” or “2”
Circuit Warning Latching
Loss of Charge is detected on circuit X, severe
enough to warn a technician, but not severe enough
to shut down the circuit.
No unit response.
Local
Loss of Charge Lockout
CktX
where X is “1” or “2”
Circuit
Immediate
Shutdown
Latching
Loss of Charge is detected on circuit X severe enough
to shut down the circuit.
Circuit X is inhibited.
Local
Low Suction Pressure
CktX
where X is “1” or “2”
Circuit
Immediate
Shutdown
Latching
The suction pressure on circuit X dropped below a
calculated pressure threshold.
Contact Trane Technical Support for further
information.
Circuit X is inhibited.
Local
Multiple circuit units will
display:
Mixed Air Temperature
Sensor EvapX
where X is “A” or “B”
Single circuit units will
display:
Mixed Air Temperature
Sensor EvapA
DX Cooling
Normal
Shutdown
Latching
Mixed Air Temperature sensor has failed out of range.
Failure of sensor X with the other sensor available:
Gene
rate “Mixed Air Temperature Sensor EvapX”
diagnostic and continue DX operation.
Failure of sensor X with the other sensor not-
available: Generate “Mixed Air Temperature Sensor
EvapX” diagnostic and inhibit DX operation.
Remote
Morning Warmup Mode
Ex
ceeded 120 Minutes
Unit Warning Non-Latching
The unit has been operating in “Morning Warmup” for
120 minutes.
This is an occupied mode that stops ventilation.
If Morning Warmup command is removed after the
diagnostic has been activated it will be cleared.
Remote
MP: Invalid
Configuration
N/A N/A Latching
The Symbio™ 800 controller has an invalid
configuration based on the current software
installed.
The Symbio™ 800 controller is invalid, contact
service support.
Remote
Diagnostics Target Severity Persistence Condition / Response Reset Level
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