Check Point 2 : Check connector (CN9) and wire
Check Point 1 : Check Float switch
Check Point 3 : Check Drain hose
ONON OFFOFF
OKOK
OKOK
Trouble shooting 13
INDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators: Detective details:
Forecast of Cause :
Drain pump error
Indoor unit Controller PCB
Float switch
When Float switch is ON for more than 3 minutes.
1. Float switch failure 2. Shorted connector and wire 3. Drain hose clog 4. Controller PCB failure
Check operation of float switch. (Any blocking by dust, etc.)
>> If Float switch does not operate, replace it.
Check loose contact of CN9 and shorted wire (Pinched wire).
>> Replace Float switch if the wire is shorted (Pinched wire)
If clogged, clear the clog.
02-15
Refer to error code table.
Check Point 4 : Replace Controller PCB
OKOK
If Check Point 1 ~ 3 do not improve the symptom, replace Controller PCB.
Check clogged Drain hose.
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