The Nozzle Does Not Inject Water - Samsung DMT800 SERIES Service Manual

4. Troubleshooting
Error type Error mode
The nozzle does not
None
inject water
4-14
Checking Method
1. Check the connections for the Circulation Motor
connector.
2. Check the connections for the Startup Condenser
connector of the Circulation Motor.
3. Check the resistance for the Circulation Motor coil.
(Remove the connector before measuring.)
- Between black wire and white wire
Normal: Approx. 15 Ω
- Between black wire and blue wire
Normal: Approx. 21 Ω
4. Check the operation of the Circulation Motor Relay.
- At No.2 mode in service inspection mode,
Check the operating voltage between the
yellow wire of the CN101 connector and the
white wire of the CN201 connector.
Normal: 120V (while operating)
- At No.3 mode in service inspection mode,
Check the operating voltage between the
yellow wire of the CN101 connector and the
blue wire of the CN201 connector.
Normal: 120V (while operating)
5. Check whether there is foreign material in the water
passages.
Corrective actions
- Reconnect the Circulation Motor connector.
- Reconnect the Startup Condenser connector of the Circulation Motor.
- Faulty: Replace the Circulation Motor.
- Faulty: Replace the Main PBA assy.
- Normal: Replace the Circulation Motor.
- Remove retainer.
- Check voltage while operating Wash motor-2(High)
- Check voltage while operating Wash motor-1(Low)
- Remove foreign material from the water passages.