LG RC9011 Series Service Manual page 26

DIAGOSTIC TEST
11
Test 5 Pump check
Trouble Symptom : Check if pump is out of order. " Empty water" signals.
Measurement condition : Power cord is unplugged.
Check the hose blocked with foreign body or twist.
(Measure with power on)
On QC test mode, when Pump
is on,
Electric noise doesn't occur
while pumping?
(Measure after power is off.)
With YL3 disconnected from
Controller,
2
YL3 1 - YL3 resistance
ranges 205±10Ω ?
• Check Pump sensor
• Check and replace Controller
- TR3
25
• Disassemble Pump
- Check foreign objects
- Check impeller
restriction
- Check connection
hose clogged
• Check or replace pump
• Check Harness
connection