Samsung AVMKH020EA0 Service Manual page 203

8
Troubleshooting
Check of drain pump (option)
SW03 switch No.4 of indoor
unit to OFF?
Yes
Are the drain pump and float
switch installed?
Yes
Solve the problem in the same manner
as the check of cassette type in page 191.
Temperature Resistance
ON Drain pump not use
OFF Drain pump use
SW03 switch of indoor unit PCB
- 202 -
No
SW03
Replace the indoor unit PCB.
No
Set the SW03 switch No.4 of indoor
unit PCB to ON and reset the
power of indoor unit.