Table 9: Troubleshooting details
Symptom Probable causes Solutions
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 is displayed on the
TEC home page.
The fault has been detected on
the TEC.
See Table 8 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 5 for lockout levels and access details.
The touchscreen is unresponsive.
You do not tap the touchscreen,
but the display acts as if it is
tapped, which causes the display
to blink or toggle between
screens.
You need to tap the display at
an offset from a touch point to
activate the display.
You tap the display or touch the
controller within 5 mm of the
display when power is applied to
the controller.
Reboot the controller. Do not interact with the
controller until the home screen displays.
Note: For common MS/TP troubleshooting
information, refer to the MS/TP Communications Bus
Technical Bulletin (LIT-12011034).
TEC3000 Series Networked and Wireless Single- or Two-stage Economizer Thermostat Controllers Quick Start Guide28
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