Install Instructions

TEC3000 Series Networked and Wireless On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers
with Dehumidification Capability Installation Guide
49
Troubleshooting
Table 15: Fault list (Part 1 of 3)
Faults Probable causes Solutions
Remote Zone Temp Fail The External Zone Temperature
sensor has been disconnected or has
failed.
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.
Supply Temp Fail The External Supply Temperature
sensor has been disconnected or has
failed.
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.
Outdoor Temp Fail (For
TEC3x3x Models)
The External Outdoor Air Temperature
sensor has been disconnected or has
failed.
1. Check the wiring of 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.
Internal Sensor Fail An internal sensor has failed on the
TEC.
Order replacement units and return the affected
devices to Johnson Controls under the RMA
program.
Dehum Unavailable Dehumidification is unavailable
because the zone humidity sensor has
failed or the humidity reading is not
reliable.
1. If the source of zone humidity was a BAS,
check the BAS to ensure that it is still online
and is providing the TEC with the humidity
reading. If removal of the BAS mapping was
intentional, reset the sensors through the
menu.
2. (For all models) If the problem persists, order
replacement units and return the affected
devices to Johnson Controls under the RMA
program.
Service Equipment connected to the BI
configured for a Service alarm is
triggering the alarm.
Service the equipment by way of the
manufacturer's recommendation.
Dirty Filter Equipment connected to the BI
configured for a Dirty Filter alarm is
triggering the alarm.
Replace the filter in the equipment as explained in
the manufacturer's instructions.
Calibration Corrupt Factory calibration data is lost or is not
installed.
Order replacement units and return the affected
devices to Johnson Controls under the RMA
program.
Changeover Fail The Supply Temperature Sensor is not
installed, has failed, or has been
disconnected and the TEC can no
longer detect changeover mode to cool
or heat.
Follow the same steps as Supply Temp Fail
alarm.
Zone Temp Unreliable All sources of zone temperature are
unreliable, including the onboard
sensor.
Order replacement units and return the affected
devices to Johnson Controls under the RMA
program.