Repair Information - Johnson Controls TEC3330 Series Installation Instructions Manual

Table 12: Troubleshooting Details
Symptom
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).

Repair Information

If the TEC3000 Series Thermostat Controller fails to operate within its specifications, replace the unit. For a
replacement thermostat controller, contact the nearest Johnson Controls representative.
TEC3000 Series Single- or Two-Stage Economizer Thermostat Controllers Installation Instructions
1
(Part 2 of 2)
Probable Causes
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.
40
Solutions
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 step
1 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.