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Table 13: Troubleshooting Details
Symptom
The controller provides an error when
trying to upgrade firmware.
The TEC3000 zone temperature does
not change fast enough compared to
the measured zone temperature from a
verification device (a calibrated
sensor).
The zone space temperature increases
or decreases too much when the unit is
active in unoccupied mode.
The controller provides an error when
trying to back up settings.
The controller provides an error when
trying to restore settings from a
backup.
The controller is unable to access a
USB drive.
The controller displays Board
Mismatch.
The controller displays Controller
Fault.
The Bell icon is displayed on the TEC
home page.
Partial Restore Complete is displayed
when trying to restore settings from a
backup file.
The temperature displayed is lower
than the actual room temperature.
TEC3000 Series Wireless Single- or Two-Stage Economizer Thermostat Controllers Installation Instructions
1
(Part 2 of 3)
Probable Causes
The firmware on the USB drive is
below the minimum required version.
Error code 1025.
The TEC3000 is configured by default
for larger spaces with normal-sized
equipment when a proportional device
is active.
The heating and cooling equipment are
too big for the unoccupied space.
The USB drive is defective.
The USB drive is defective.
The Restore file is corrupt.
The Restore file is from an
incompatible model TEC.
The drive is formatted as NTFS or
another unsupported format. The TEC
supports FAT16 and FAT32 formats
only.
The USB drive is defective.
The I/O board that the display board is
currently attached to does not match
the one that initially shipped with the
display board.
A hardware failure is causing the two
boards to incorrectly identify
themselves.
An internal fault was detected and the
controller was unable to recover.
The fault has been detected on the
TEC.
Not all of the items in the backup file
have been restored. This error can be
caused by a value being out of the
minimum or maximum range in the
backup file. It may also occur if there
are inconsistencies in the reliability of a
setting in the backup file and on the
TEC device.
Cold air drafts are entering the back of
the TEC.
Air is being forced through the TEC
from a nearby vent.
43
Solutions
Please use firmware version 2.0.2.xxxx
or higher.
A reboot is required to clear the
Firmware Mismatch fault that occurs.
Select Control Setup >Tuning >
Equipment Size > Oversized.
Decrease the Unoccupied Off Delay
parameter from 10 minutes to a more
appropriate time for the equipment
configuration.
Try a different USB drive.
Try a different USB drive.
Try restoring a different backup file.
Ensure that the backup file being
restored was from the same model TEC.
Reformat the USB drive, or try a different
USB drive with a supported format.
Try a different USB drive.
Attach the display board to the correct
I/O board.
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.
See Table 12 for TEC fault causes and
resolution.
1. Create a Backup file on a USB drive
for the TEC that is showing the issue.
2. Edit the backup file created in the
previous step on a computer to
reflect the preferred settings.
3. Verify that the modified values are
within minimum and maximum range
in the backup file.
4. Restore the settings from the newly
edited backup file on the TEC.
Seal any holes behind the TEC to reduce
drafts.
Move the location of the TEC or change
the venting to prevent air from being
forced through the TEC.
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