Water Supply Error - Samsung DMT800 SERIES Service Manual

Error
Error Type
mode
1. Check whether the water faucet is open.
2. Check whether the water supply has been cut off.
3. Check whether any foreign material is in the Water Supply Line and the
water Inlet Valve filter.
4. Check the connection for the Inlet Valve connector.
5. Check whether the coil in Inlet Valve is conductive (Remove the connector
before measuring.)
4E
[Or]

Water supply Error

'Smart
Auto' 6. Check whether the Inlet Valve is operating normally.
LED - Check the operation of the Inlet Valve
- Check the Inlet Valve Relay.
7. Check whether the water supply stops after water is supplied for 5 seconds.
8. Check whether the water supply stops after water is supplied for 1~5
minutes.
9. Check whether the water supply stops after water is supplied fully until the
floater in Assy Case sensor is located in High level sensor.
4-7
Checking Method
Normal: Approx. 1.2 kΩ
Normal: 120V
: Check the voltage between the yellow wire of the Main PBA CN101
connector and the brown wire of the CN202
Normal: 120V (while operating)
Corrective actions
- Open the faucet.
- Close the faucet and turn off the power. Wait until the water supply
resumes.
- Remove the foreign material. Clean the filter with a brush.
- Reconnect the Inlet Valve connector.
- Faulty: Replace the Inlet Valve.
- Faulty: Replace the Main PBA assy.
- Normal: Replace the Inlet Valve
- Remove Retainer.
- Check voltage
- Replace the Assy Case Brake which is including Flow Meter.
- Check the water supply valve and increase the water pressure.
- Replace the Assy Case Sensor which is including water (high &
low) level sensor.
4. Troubleshooting