Troubleshooting_45
Check type
Check code
Checking method
Corrective actions
Water supply
check
4C
1. Check whether the faucet is open.
- Open the faucet.
2. Check whether the water supply has been cut off.
- After wait until the water supply resumes and turn off the power.
- After the water supply resumes, turn on the power.
3. Check whether any foreign material is in the Water Supply Line and the
Water Valve filter.
- Remove the foreign material, clean the filter in Water Valve with a brush.
4. Check the connection for the Water Valve connector.
- Reconnect the Water Valve connector.
5. Check whether the coil in Water Valve is conductive.
(Remove the connector before measuring.)
► Normal: Approx. 990Ω ± 10% (890Ω~1089Ω)
- Faulty: Replace the Water Valve.
6. Check whether the water supply stops, after water is supplied for 20
seconds.
- Faulty: Replace the Water Valve and Assy guide water-sub.
7. Check whether the water supply stops after water is supplied for
60minutes.
- Check the water supply pressure. (> 0.5bar)
- Faulty: Replace the Water Valve and Assy guide water-sub.
8. Check whether the Water Valve is operating normally in the Main PBA.
- Check the Water Valve Relay in Main PBA.
: Check the voltage between the Blue wire (Number6) of the CN401 and
the White wire of the CN101 connector.
► Normal: 110 ~120V (while operating)
- Faulty: Replace the Main PBA Assy.
- Normal: Replace the Water Valve.
9. Check the Power Relay.
- See the “Power Relay check code”.
4-3. CHECK CODE TROUBLE SHOOTING