Johnson Controls FCP-NA-701-L User Manual page 25

Table 9: Fault list
Error code
ER:05
ER:06
ER:07
ER:08
ER:09
ER:10
ER:11
ER:12
FCP Non-Programmable and Programmable Fan Coil or PTAC Thermostat Largo User Guide
Description
ERROR_REMOTE_SENSOR_OPEN
ERROR_REMOTE_SENSOR_SHORT
ERROR_REMOTE_SENSOR_HI
ERROR_REMOTE_SENSOR_LO
ERROR_PIPE_SENSOR_OPEN
ERROR_PIPE_SENSOR_SHORT
ERROR_PIPE_SENSOR_HI
ERROR_PIPE_SENSOR_LO
Solutions
• Verify if the remote temperature sensor is
disconnected from the thermostat terminals
RS and SC. If yes, re-wire the remote
sensor correctly and then power cycle the
thermostat.
• Verify if the remote sensor is malfunctioned
or damaged.
• Contact technical support.
• Verify the remote temperature sensor
wiring and check if thermostat terminals
RS and SC are shorted. If yes, re-wire the
remote sensor correctly and then power
cycle the thermostat.
• Verify if the remote sensor is malfunctioned
or damaged.
• Contact technical support.
Remote sensor detected a too high temperature.
• Check if the thermostat wiring is connected
correctly to the FCU or PTAC.
• Verify if the remote sensor is installed
correctly in the room or duct.
• Contact technical support.
Remote sensor detected a too low temperature.
• Check if the thermostat wiring is connected
correctly to the FCU or PTAC.
• Verify if the remote sensor is installed
correctly in the room or duct.
• Contact technical support.
• Check if the pipe temperature sensor
wiring is disconnected from thermostat
terminals PS and SC. If yes, re-wire the pipe
sensor correctly and then power cycle the
thermostat.
• Verify if the pipe sensor is malfunctioned or
damaged.
• Contact technical support.
• Verify the pipe temperature sensor wiring
and check if thermostat terminals PS and
SC are shorted. If yes, re-wire the pipe
sensor correctly and then power cycle the
thermostat.
• Verify if the pipe sensor is malfunctioned or
damaged.
• Contact technical support.
Pipe sensor detected a too high temperature.
• Verify if the pipe sensor is installed correctly
in the pipe.
• Contact technical support.
Pipe sensor detected a too low temperature.
• Verify if the pipe sensor is installed correctly
in the pipe.
• Contact technical support.
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