Panasonic MDF-U700VX-PB Operating Instructions Manual page 36

ALARMS & SAFETY FUNCTIONS
Table 15. Alarms & safety function list
Alarm & safety
If the thermal sensor is disconnected.
If the thermal sensor is short-circuited.
If the condenser sensor is
disconnected.
If the condenser sensor is short
circuited.
Sensor abnormality
If the condenser sensor is
disconnected.
If the condenser sensor is
short-circuited.
If the ambient temperature sensor is
disconnected.
If the ambient temperature sensor is
short-circuited.
When the battery switch is OFF during
Battery switch check
alarm test.
Condenser temp. In the event of failure of fan motor for
abnormality cooling the compressor.
If the fan motor "A" is stopped.
Fan motor
abnormality
If the fan motor "B" is stopped.
If the cooling circuit "A" broke down.
Cooling circuit
abnormality
If the cooling circuit "B" broke down.
Note:
• When the operation is started in high ambient temperature, the alarm lamp (ALARM) sometimes flashes,
and then the message (Please check a condenser filter) of the filter alarm is indicated on it in the top
screen. In this case, the lamp is off automatically when the chamber temperature is getting lower.
• The freezer resumes the operation after power failure with the temperature setting before power failure
as the chamber temperature setting and alarm temperature setting are memorized in the nonvolatile
memory.
• The chamber temperature is displayed for 5 seconds by pressing buzzer stop key (BUZZER) during
power failure alarm. Then the buzzer is silenced. The alarm lamp keeps flashing.
• The battery for power failure alarm is an article for consumption. It is recommended that the battery
will be replaced about every 3 years.
replacement of the battery.
• About 3 days operation of a freezer is necessary to full charge the battery.
• Fan motors are expendable supplies. Replace them for about every 6 years. Contact our sales
representative or agent at the time of replacement of the fan motors.
Situation
Message indication:
"Error E01: Temp Sensor
Open."
Message indication:
"Error E02: Temp Sensor
Short."
Message indication:
"Error E03: Condenser
Sensor "A" Open."
Message indication:
"Error E04: Condenser
Sensor "A" Short."
Message indication:
"Error E05: Condenser
Sensor "B" Open."
Message indication:
"Error E06: Condenser
Sensor "B" Short."
Message indication:
"Error E07: Ambient Temp.
Sensor Open."
Message indication:
"Error E08: Ambient Temp.
Sensor Short."
Message indication:
"Error E09: Battery switch
is off."
Message indication:
"Error E10: Condenser
Temp. is abnormal."
Message indication:
"Error E16: Fan motor "A"
abnormal."
Message indication:
"Error E17: Fan motor "B"
abnormal."
Message indication:
"Error E18: Cooling circuit
"A" abnormal."
Message indication:
"Error E19: Cooling circuit
"B" abnormal."
Contact our sales representative or agent at the time of
Indication
Intermittent tone
Intermittent tone
Intermittent tone
Intermittent tone
Intermittent tone
Intermittent tone
Intermittent tone
Intermittent tone
Intermittent tone
35
Buzzer Safety operation
Remote alarm.
Unit is continuous
running.
Remote alarm.
Remote alarm.
Remote alarm.
----- -----
Remote alarm.
All compressor are stops.
Remote alarm.
Fan motor "B" is
continuous running.
Remote alarm.
Fan motor "A" is
continuous running.
Remote alarm.
Remote alarm.