3-58
Check code
Operation cause
[0b]
Indoor water overflow alarm
1. Float switch disconnection
2. Drain pump operation error
3. Drain pipe blockage
Check code
Operation cause
[0C] Indoor TA sensor alarm
TA sensor open/short
TA sensor open/short has been detected. Check disconnection of CN04 connector connection circuit
(TA sensor : Indoor main P.C. board (MCC-1361) and characteristics of sensor resistance value.
When the sensor is normal, replace indoor main P.C. board (MCC-1361)
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
(
*
1) Check whether voltage of CN08 1
to 3 pins of indoor main P.C. board
(MCC-1361) is 220–240V, 50Hz
(
220V, 60Hz
) or not.
Does drainage water collect?
Does float switch operate?
Does drain pump operate?
Check for blockage of
drainage hose.
Indoor main P.C. board
(MCC-1361) failure
Modify connection of connector CN11.
(Drain pump :Indoor main P.C. board (MCC-1361))
Indoor main P.C. board
(MCC-1361) error
Is connection of
float switch connector
(Indoor main P.C. board
(MCC-1361)) CN11 normal?
Check and modify wiring circuit.
Float switch error
Drain pump error
Is power of drain pump
turned on? (
*
1)
Is circuit wiring normal?
<For 4-way Air Discharge Cassette type>
