Mitsubishi Electric PK20 User Manual page 42

Normal condition (Battery only)
LAMP (Green)
ON
OFF
OFF
Abnormal condition
LAMP (Red)
OFF
OFF
OFF
Flashing x 1
Flashing x 2
Flashing x3
ON
EN-42
POWER (Red)
OFF
ON
ON
POWER (Red)
Off x 1 (Flashing)
Off x 3 (Flashing)
Off x 4 (Flashing)
OFF
OFF
OFF
OFF
CHARGE (Red)
OFF
OFF
OFF
Low Battery (System turned off)
CHARGE (Red)
-
-
-
-
-
-
-
CONDITION
System ON
System standby
CONDITION
System Failure
Fan abnormal
Over temperature
System Failure
System Failure
System Failure
System Failure