Test 1 : Check Float Switch
Check operation of float switch. (any blocking by dust, etc.)
Remove Float switch and check ON/OFF switching operation
by using a meter.
>> If Float switch is abnormal, replace it.
ON
OFF
OK
1. Float switch failure 2. Shorted connector/wire 3. Controller PCB failure
4. Drain pump failure 5. Hose clogging
Test 2 : Check Connector (CN 9) / Wire
Check loose contact of CN9 /shorted wire (pinched wire).
>> Replace Float switch if the wire is abnormal.
Test 4 : Check Controller PCB
If Test 1 - 3 do not improve the symptom, change
Controller PCB and execute the check operation again.
Attention!!
Wall mount / Compact wall mount /
Universal Floor / Ceiling type
does not have a float switch.
In this case, replace
Controller
PCB
and set up the original address.
Please refer to.
OK
OK
Test 3 : Check Drain Hose
Check Drain Hose .
>> If there is Hose clogging. Please clear the clog.
Trouble shooting 15
INDOOR UNIT Error Method:
Drain Pump Error
Indoor unit controller PCB circuit
Float switch
When Float switch is ON for more than 3 minutes.
Detective Actuators:
Detective details:
Indicate of Display:
Forecast of Cause:
02-29
Indoor Unit
Outdoor Unit
Operation lamp : 5 time Flash
ERROR CODE : [E : 53]
Timer lamp
: 3 time Flash
: Light ON
: Light OFF
n : n time blinking
Monitor
A
B
C
D
E
F
5
15
