TEC3000 Series On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
Capability Installation Instructions
44
Touchscreen Unavailable
The touchscreen components have
failed to initialize.
1. Reboot the controller.
2. If problems persist, order replacement units
and return the affected devices to Johnson
Controls under the RMA program.
Board Mismatch
The baseboard and CPU board are
paired incorrectly. An error message
appears on the TEC indicating the
model number of the baseboard and
CPU board.
Match the baseboard to its corresponding CPU
board. See
Repair Information
for information on
ensuring that you have the CPU board and base
board paired correctly.
Firmware Mismatch
The previous upgrade has not
completed.
1. Upgrade the TEC3000 to the latest released
version.
2. Upgrade the TEC3000 to the current version
again.
The previous downgrade has not
completed because the previous
version is no longer supported.
Reboot the TEC3000 to clear the fault.
USB Malfunction
A USB drive has malfunctioned and
drawn more than the maximum allowed
current.
1. Attempt to insert and use the USB drive
again.
2. Try a new USB drive.
3. If problems persist, order replacement units
and return the affected devices to Johnson
Controls under the RMA program.
Supply Fan Runtime Limit
Extended
The Supply Fan Runtime has exceeded
the configured Supply Fan Runtime
Limit.
1. Service the Supply Fan.
2. Reset the Supply Fan runtime.
Heating Ineffective
The Supply Air Temperature has not
increased above the configured Supply
Air Temperature Alarm Offset while
heating has been active for at least the
Supply Air Temperature Alarm Delay.
Verify that the heating elements on the rooftop
are functioning properly.
Cooling Ineffective
The Supply Air Temperature has not
decreased below the configured Supply
Air Temperature Alarm Offset while
cooling has been active for at least the
Supply Air Temperature Alarm Delay.
Verify that the cooling elements on the rooftop are
functioning properly.
Supply Fan Fault
The Supply Fan Status configured for
either BI1 or BI2 has not proved within
the configured Fan Alarm Delay.
1. Verify that the Supply Fan is operating when
turned on.
2. Verify that the Supply Fan Status wiring is
connected correctly.
Zone Temperature Too Cold
The Zone Temperature has decreased
below the configured Zone Temp Low
Limit.
Verify that the TEC and the RTU heating are
enabled and functioning.
Zone Temperature Too Hot
The Zone Temperature has increased
above the configured Zone Temp High
Limit.
Verify that the TEC and the RTU cooling are
enabled and functioning.
Table 11: Fault List (Part 3 of 3)
Faults
Probable Causes
Solutions