Johnson Controls TEC3000 Series Installation Guide

Table 15: Fault list
Faults Probable causes Solutions
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.
TEC3000 Series On/Off or Floating Fan Coil Thermostats Installation Guide54

Johnson Controls TEC3000 Series Specifications

General

Brand	Johnson Controls
Model	TEC3000 Series
Category	Thermostat
Language	English