48
ALARMS, SAFETY, AND SELF-DIAGNOSIS
Table 3 Alarms & safety function list
Alarm & safety
Situation
LCD touch panel
Buzzer
Remote
alarm
Safety
operation
Message display field
Alarm display
Sensor abnormality
If the thermal sensor is
disconnected.
Err01:
Temperature Sensor Open.
“Warning” is
displayed
alternately in
normal
characters and
reverse video.
Intermittent
tone
ON
Unit is
continuous
running.
If the thermal sensor is
short-circuited.
Err02:
Temperature Sensor Short.
If the cascade sensor is
disconnected.
Err03:
Cascade Sensor Open.
―
If the cascade sensor is
short circuited.
Err04:
Cascade Sensor Short.
If the filter sensor is
disconnected.
Err05:
Filter Sensor Open.
―
If the filter sensor is
short-circuited.
Err06:
Filter Sensor Short.
If the ambient tem. sensor
is disconnected.
Err07:
Ambient Temp Sensor Open.
―
If the ambient tem. sensor
is short-circuited.
Err08:
Ambient Temp Sensor Short.
Battery switch check
When the battery switch
for power failure alarm is
OFF.
Err09:
Battery Switch is OFF.
―
―
―
―
Condenser temp.
abnormality
When the fan motor for
cooling the compressor
fails.
(If the temperature of the
filter sensor is 52
o
C or
higher.)
Err10:
Condenser Temp Abnormal.
“Warning” is
displayed
alternately in
normal
characters and
reverse video
Intermittent
tone
ON
Compressor
OFF
Communication
error
When communication
between LCD touch
panel and control
substrate is died out or
unstable.
Err56:
Communication Failure.
―
―
―
―
●
When “disconnecting/short-circuit of the thermal sensor” and “condenser temp. abnormality” are
activated at the same time, safety operation of compressor OFF is prioritized.