Samsung DMT300 Series Training Manual page 32

Troubleshooting and Adjustment – Resolution by symptom
2. When the drain is not working
Is the connected condition of the terminal of drain pump normal?
Is the power connected to drain motor coil? About 25Ω
The drain is not working. (5E)
Y
Is the drain hose clogged by alien particles?
Y
Is the Low Level Sensor working
normally? (Check service test mode
t8 and check alien particles in Float.)
Y
Y
Y
Is the main relay working normally?
Refer to "Main relay is not working".
Y
Main PBA ASSY is defective.
Please replace it.
N
Clean the alien particles inside
N
Low Level Sensor is defective.
N
Connect the drain pump terminal
N
Drain pump is defective. Please
N
Main relay is defective. Please
Check point
1. Check abnormal noise of drain motor chamber for
foreign particle.
2. Drain condition of the sink.
3. Refer the service manual page.4-3.
the drain hose.
Please replace it.
firmly.
replace it.
replace it.