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113
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'17 • PAC-T-256
(iv) Display sequence of error codes or inspection indicator lamps
■
Occurrence of one kind of error
Displays are shown respectively according to errors.
■
Occurrence of plural kinds of error
Section
Category of display
Error code on remote
control
• Displays the error of higher priority (When plural errors are persisting)
• Displays the present errors. (When a new error has occurred after the former error was reset.)
Red LED on indoor
control PCB
Red LED on outdoor
control PCB
■
Error detecting timing
Section
Error description
Error code
Error detecting timing
Indoor
Drain trouble (Float switch
activated)
Whenever float switch is activated after 30 second had past since
power ON.
Communication error at
initial operation
“
WAIT
” No communication between indoor and outdoor units is
established at initial operation.
Remote control
communication circuit error
Communication between indoor unit and remote control is
interrupted for mote than 2 minutes continuously after initial
communication was established.
Communication error during
operation
Communication between indoor and outdoor units is interrupted
for mote than 2 minutes continuously after initial communication
was established.
Excessive number of
connected indoor units by
controlling with one remote
control
Whenever excessively connected indoor units is detected after
power ON.
Return air temperature
thermistor anomaly
-50°C or lower is detected for 5 seconds continuously within 60
minutes after initial detection of this anomalous temperature.
Indoor heat exchanger
temperature thermistor
anomaly
-50°C or lower is detected for 5 seconds continuously within 60
minutes after initial detection of this anomalous temperature.
Or 70°C or higher is detected for 5 seconds continuously.
Outdoor
Outdoor air temperature
thermistor anomaly
-55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after initial detection of this anomalous
temperature.
Or -55°C or lower is detected for 5 seconds continuously within
20 seconds after compressor ON.
Outdoor heat exchanger
temperature thermistor
anomaly
-55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after initial detection of this anomalous
temperature.
Or -55°C or lower is detected for 5 seconds continuously within
20 seconds after compressor ON.
Discharge pipe temperature
thermistor anomaly
-25°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after initial detection of this anomalous
temperature.
Suction pipe temperature
thermistor anomaly
-50°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after initial detection of this anomalous
temperature.
Low pressure sensor anomaly
0V or lower or 4.0V or higher is detected for 5 seconds
continuously 3 times within 40 minutes after initial detection of
this anomalous pressure.
