Table 17: Troubleshooting details
Symptom Probable causes Solutions
The drive is formatted as NTFS
or another unsupported format.
The TEC supports file allocation
table (FAT) (for networked
models), FAT16 (for wireless
models), and FAT32 (for all
models) formats only.
Reformat the USB drive, or try a different USB
drive with a supported format.
The controller is unable to access
a USB drive.
The USB drive is defective. Try a different USB drive.
The I/O board that the display
board is currently attached to
does not match the one that
initially shipped with the display
board.
Attach the display board to the correct I/O
board.
The controller displays Board
Mismatch.
A hardware failure causes
the two boards to incorrectly
identify themselves.
Order replacement units and return the affected
devices to Johnson Controls under the RMA
program.
The controller displays
Controller Fault.
An internal fault was detected
and the controller was unable to
recover.
Order replacement units and return the affected
devices to Johnson Controls under the RMA
program.
The Bell icon displays on the TEC
home page.
The fault has been detected on
the TEC.
See Table 16 for TEC fault causes and resolution.
Partial Restore Complete is
displayed when trying to restore
settings from a backup file.
Not all of the items in the
backup file have been restored.
This error can occur when a
value is 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.
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 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.
Cold air drafts enter the back of
the TEC.
Seal any holes behind the TEC to reduce drafts.The temperature displayed is
lower than the actual room
temperature.
Air is being forced through the
TEC from a nearby vent.
Move the location of the TEC or change the
venting to prevent air from being forced through
the TEC.
For networked models, the
Online icon does not appear for a
networked controller.
There is incorrect field bus
wiring.
Refer to the MS/TP Communications Bus Technical
Bulletin (LIT-12011034).
For wireless models, Supervisory
Status = Offline
The supervisory controller is
not communicating with the
TEC. The TEC is not mapped to
a JCI Supervisory System. The
WNC or WRG Gateway is not
communicating with the TEC.
1. Map the TEC into a JCI Supervisory system.
2. Verify that the PAN’s WNC or WRG Gateway
is online.
3. Add ZFR182x or ZFR183x Routers/Repeaters
into the wireless system.
Some icons are hidden. Lockout levels are used or the
icons are hidden due to the
display settings.
See Table 7 for lockout levels and access details.
TEC3000 Series Proportional Fan Coil Thermostats Installation Guide 37
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