Troubleshooting - Johnson Controls TEC3000 Series Quick Start Manual

Troubleshooting

Table 8: Fault list
Faults
Remote Zone Temp Fail
Supply Temp Fail
Outdoor Temp Fail
Internal Sensor Fail
OA Lockouts Disabled
Econ Unavailable
Dehum Unavailable
Service
Dirty Filter
Calibration Corrupt
Zone Temp Unreliable
24 TEC3000 Series Networked and Wireless Single- or Two-stage Economizer Thermostat Controllers Quick Start Guide
Probable causes
The External Zone Temperature
sensor has been disconnected or has
failed.
The External Supply Temperature
sensor has been disconnected or has
failed.
The External Outdoor Air
Temperature sensor has been
disconnected or has failed.
An internal sensor has failed on the
TEC.
The Local Outdoor Air Temperature
sensor has become disconnected
or failed or a network Outdoor Air
Temperature sensor has timed out,
and the TEC is no longer shutting
down equipment based on the OA
lockout setpoints.
The Outdoor Air Temperature sensor
is not installed, has failed, or has been
disconnected and the TEC can no
longer control the economizer.
Dehumidification is unavailable
because the zone humidity sensor has
failed or the humidity reading is not
reliable.
Equipment connected to the BI
configured for a Service alarm
triggers the alarm.
Equipment connected to the BI
configured for a Dirty Filter alarm
triggers the alarm.
Factory calibration data is lost or is
not installed.
All sources of zone temperature are
unreliable, including the onboard
sensor.
Solutions
1. Check the wiring of the sensor.
2. If intentionally disconnected, reset sensors
through the menu.
3. If the problem persists, order replacement
units and return the affected devices to
Johnson Controls under the RMA program.
1. Check the wiring of the sensor.
2. If intentionally disconnected, result fault
by entering the menu, enter Control Setup,
and select Inputs to reset the sensors.
3. If the problem persists, order replacement
units and return the affected devices to
Johnson Controls under the RMA program.
1. Check the wiring of the sensor.
2. If intentionally disconnected, reset sensors
through the menu.
3. If problems persist, order replacement
units and return the affected devices to
Johnson Controls under the RMA program.
Order replacement units and return the
affected devices to Johnson Controls under the
RMA program.
1. If the source of outdoor air temperature
was a locally connected sensor, follow the
steps for the Outdoor Temp Fail alarm.
2. If the source of outdoor air temperature
was a BAS, check the BAS to ensure that
it is still online and is providing the TEC
with the temperature reading. If removal
of the BAS mapping was intentional, reset
sensors through the menu.
Follow the same steps as Outdoor Temp Fail
alarm.
Order replacement units and return the
affected devices to Johnson Controls under the
RMA program.
Service the equipment by way of the
manufacturer's recommendation.
Replace the filter in the equipment as explained
in the manufacturer's instructions.
Order replacement units and return the
affected devices to Johnson Controls under the
RMA program.
Order replacement units and return the
affected devices to Johnson Controls under the
RMA program.