2014 960-914-06 (General SVC)

- 51 -
Only for training and service purposes
Check the wire
connection (Open,
Soldered poorly)
❊ Drain pump check
Check drain tube
installation
Is it normal ?
Check the level of
water (Float moves top
position)
Is it normal ?
Check the wire
connection (Open,
Soldered poorly)
Is the float
switch clean ?
Yes
Yes
No
Check Drain Pump
Yes
No
Correct connection
Or re-soldering PCB
Is the resistance of
Drain Pump? Normal
( about 400 ) ?
Yes
No
Change the Drain Pump
Is the drain
pump clean ?
Yes
No
Clean drain pump
No
Clean float switch
Is the resistance of f
loat switch normal
(short) ?
Yes
No
Change the float switch
Is it normal ?
No
Correct connection
Or re-soldering PCB
Check Flow Chart
CN-D/Pump
CN-Float
04
Drain pump
/ Float switch
• Float switch open.
(Normal : short)
• Water over flow
• The connection of wire (Drain pump/ Float switch)
•
Drain pump power input. (230V)
• Drain tube installation.
• Indoor unit installation. (Inclination)
Display
code
Title Cause of error Check point & Normal condition
Check Point
1. Check the wire connection. (Open / Short) ’ Repair the connection
2. Check the soldering state of connector. (Soldered poorly) ’ Repair or Change the PCB.
3. Check the volt. Of main PCB power source. (DC 12V) ’ Repair or Change the main PCB.
4. Check the installation of wired remote controller. (Noise interference) ’ Adjust the state of installation
※ To change drain pump assmbly for service, first separate c/box and disassemble drain pump assembly for
LHN240HV.