Troubleshooting
故障现象
可能原因
解决方法
Compliance
Johnson Controls declares that these products are in compliance with the essential requirements and other relevant
provisions of the EMC Directive and Low Voltage Directive.
FAN-8941(1123)
Failures Possible Causes Solutions
The thermostat cannot be turned on.
The thermostat is not powered on. Power on the thermostat.
The front and rear panel cables of the
thermostat are not installed properly.
Install the front and rear panel cables of the thermostat properly.
The power cord of the thermostat is
connected incorrectly or poorly.
Connect the power cord of the thermostat correctly.
The thermostat's screen icon " "
flickers.
A failure occurs on the communication line.
Check the communication wiring for the thermostat.
Check the communication address and the baud rate setting.
The thermostat's fault icon " "
appears, and the screen displays the
fault code.
E0: The thermostat's temperature sensing
probe
When the thermostat is connected to an external remote sensor:
Check whether the remote sensor is selected in the parameter
setting.
When the thermostat is not connected to any external remote
sensor: Replace the thermostat.
E4: Filter warning: The filter reaches its set
service time.
After replacing the filter, enter the parameter setting interface to
reset the filter's service time and reminder.
EE: A failure occurs on the thermostat's
EEPROM chip.
Replace the thermostat.
HI: The ambient temperature is too high. It will automatically restore after the ambient temperature drops.
Lo: The ambient temperature is too low. It will automatically restore after the ambient temperature rises.
T7000e English
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