48 _ Troubleshooting
Check type
Check code
Checking method
Corrective actions
Half load check
PC
1. Check the connections for the Distributor Motor and Micro Switch
connectors.
- Reconnect the Distributor Motor and Micro
Switch connectors.
2. Check whether the coil in Distributor Motor is conductive.
: Remove the connectors before measuring.
► Normal: Approx. 3.6 ~ 4.0kΩ
- Faulty: Replace the Distributor Motor.
3. Check the position sensing operations when turning the Micro Switch on
and off.(Use n5 Service test mode.) Check the conduction between the
brown wire and the Violet wire.
► Micro switch On: Short
► Micro switch Off: Open
- Micro S
witc
h sign alters in ON/OFF state.
- It is NG if keep in ON or OFF state for 120 seconds.
* Do not supply with water and test.
- Faulty: Replace the Micro Switch for sensing
positions.
- Normal: Replace the valve distributor and
CAM switch.
4. Adjust Cam Assy and Find the faulty.
- Faulty: Replace Cam Assy.
5. Check whether half load is operating normally.
- Check the half load operation
► Normal: 110 ~ 120V
- Check the operation of Distributor Motor Relay.
: Check the operating voltage between the 3pin(Brown) wire of the
Main PBA CN401 connector and the 1pin(White) wire of the Main PBA
CN101 connector.
► Normal: 110 ~ 120V (while operating)
- Faulty: Replace the Main PBA Assy.
6. Check the Power Relay.
- See the “Power Relay check code”.