LG LZ-H080GBA2 - Page 32

- 32 -
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Troubleshooting
No. Failure Possible Causes Necessary actions
• No power supply to ventilation system
• Longer wiring length of transmission
wire than standards
• Longer wiring length of transmission
wire than standards
• Delay mode set in remote controller
• Longer wiring length of signal wire to
external equipment than standards
• No input of external equipment signals
• Interlocking to air conditioner set
• Connecting failure of transmission line
• Communication error in remote
controller
• Longer wiring length of transmission
line
• Power off in ventilation system
• Incorrect power supplied in ventilation
system
• Connecting failure of transmission line
• Longer wiring length of transmission
line than prescribed
• Omission of LED screen on remote
controller
• Too short distance between
transmission line and power line
• Power off during operation of ventilation
system
• Check power of ventilation system
• Check the length of transmission wire
• Check the length of transmission wire
• Check the delay mode setting of remote
controller
• Check the wiring length of signal wire
• Check the external equipment
• Release the interlocking setting
• Check the connection of transmission line
• Check the connection of transmission line
• Check the wiring length of transmission
line
• Check the power in ventilation system
• Check the power
• Check the connection of transmission line
• Check the wiring length of transmission
line
• Replace the remote controller
• Wire the transmission line and power line
at more than 5cm interval
• Stop the ventilation system using remote
controller, and temporarily turn the power
off
No Display on Remote
Controller
1
Impossible to Operate
Remote Controller
2
No Interlocking with
External Equipment
3
Failure in single operation
by remote controller for
ventilation system, instead
interlocking to other air
conditioner
4
Communication error in
ventilation system
Communication error in
remote controller
Failure in screen
displaying
Arbitrarily operated/stop
or converted the mark
when power on, the
remote controller is
indicated and ventilation
system operates
5
6
7
8
9
For the remote controller failure