Samsung AC035JNMCEH Service Manual page 45

4-5-9 Fan error
1. Checklist :
1) Isn't the fan locked?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
4) Is the resistance value of sensor connection pull_up correct?
2. Troubleshooting procedure
Isn't the Fan locked?
Is the connector connected correctly?
Is the color of Fan wire matched correctly?
4-5-10 DC-Link voltage sensor error
1. Checklist :
1) Is the connection of R, S, T power wire normal?
2) Are Relay RY21 and R200 on the INVERTER PCB mounted normally?
2. Troubleshooting procedure
Are connection of the wire from INVERTER PBA to
Exchange INVERTER PCB
Samsung Electronics
Yes
Yes
Yes
EMI PBA normal?
Yes
Remove the Fan lock.
No
No
Connect the connector.
No
No
Exchange the Fan.
Exchange the PCB.
No
Check and correct the wire connection
Normal operation
Exit
4-19