Sanyo MCO-19M Service Manual page 21

(8) Err01: CO2 gas cylinder becomes empty
If a chamber CO2 density is not increased in spite that a CO2 valve is left opened, the following
message will be displayed.
"Err01: CO2 Gas Empty"
Buzzer will sound intermittently and remote alarm will be active.
When an Automatic CO2 Cylinder Changeover System (MCO-21GC) is installed optionally, CO2
supply line will be automatically switched to another line.
The indication of CO2 cylinder which becomes empty will start blinking.
(9) Err02: N2/O2 gas cylinder becomes empty
If a chamber O2 density is not increased in spite that a N2/O2 valve is left opened, the following
message will be displayed.
"Err02: N2/O2 Gas Empty"
Buzzer will sound intermittently and remote alarm will be active.
N2/O2 supply line will be automatically switched to another line.
The indication of N2/O2 cylinder which becomes empty will start blinking.
(10) Err03: It is wrong CO2 gas connection
If a chamber CO2 density is increased in spite that a CO2 valve is closed, the following message
will be displayed.
"Err03: CO2 Gas Connect Abnormal"
Buzzer will sound intermittently and remote alarm will be active.
(11) Err04: It is wrong N2/O2 gas connection
If a chamber O2 density is changed wrongly when a N2/O2 valve is opened, the following
message will be displayed.
"Err04: N2/O2 Gas Connect Abnormal"
Buzzer will sound intermittently and remote alarm will be active.
(12) Err05, Err06: Temp. sensor is abnormal
When a temp. sensor is disconnected or short circuited, the following message will be displayed.
"Err05: Temp Sensor Open" --- Temp. sensor is disconnected
"Err06: Temp Sensor Short" --- Temp. sensor is short circuited
Buzzer will sound intermittently and remote alarm will be active.
(13) Err07, Err08: CO2 Box temp. sensor is abnormal
When a CO2 Box temp. sensor is disconnected or short circuited, the following message will be
displayed.
"Err07: CO2S Box Temp Sensor Open"
"Err08: CO2S Box Temp Sensor Short"
Buzzer will sound intermittently and remote alarm will be active.
(14) Err09, Err10: Ambient temp. sensor is abnormal
When an ambient temp. sensor on the Main PCB is disconnected or short circuited, the following
message will be displayed.
"Err09: AT Sensor Open"
"Err10: AT Sensor Short"
Buzzer will sound intermittently and remote alarm will be active.
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