Johnson Controls TEC3310 Installation Instructions Manual page 46

Table 12: Troubleshooting Details
Symptom
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.
The Online icon does not appear
for a networked controller.
Some icons are hidden.
1. For common MS/TP troubleshooting information, refer to the MS/TP Communications Bus Technical Bulletin
(LIT-12011034).
TEC3000 Series On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
1
(Part 2 of 2)
Probable Causes
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 FAT 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.
There is improper field bus
wiring.
Lockout levels are used or the
icons are hidden due to the
display settings.
Capability Installation Instructions
46
Solutions
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 11 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 PC to reflect the desired 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.
Refer to the MS/TP Communications Bus
Technical Bulletin (LIT-12011034).
See Table 4 for lockout levels and access details.