Troubleshooting 7 - Indoor Unit Error Method: Water Drain Abnormal - Fujitsu Airstage V series Service Manual

Trouble shooting 7
INDOOR UNIT Error Method:
Water Drain Abnormal
Detective Actuators:
Indoor Unit Controller PCB Circuit
Float Switch
Forecast of Cause : 1. Float switch defective 2. Shorted connector/wire 3. Controller PCB defective 4. Drain pump defective
Check Point 1 : Check Float Switch
p Check operation of float switch. (any blocking by dust, etc.)
p Remove Float switch and check ON/OFF switching operation
by using a meter.
>>If Float switch is defective, replace it.
OK
Check Point 2 : Check Connector (CN 15) / Wire
p Check loose contact of CN15 /shorted wire (pinched wire).
>>Replace Float switch if the wire is abnormal
OK
Check Point 3 : Check Controller PCB
If Check Point 1 & 2 do not improve the symptom, change
Controller PCB and set up the original address.
Indicate or Display:
Indoor Unit : Operation LED 4 Times Blink, Timer LED Flash
Outdoor Unit : LED1 Flash, LED6
ERROR CODE : E : 11
Detective details:
When Float switch is ON for more than 3 minutes.
06-15
Swing LED OFF
1Time Blink
ON
Attention!!
Small size wall mount type does not have a
float switch. In this case, replace Control PCB
and set up the original address.
OFF