Troubleshooting by Indication on the Remote Controller
118
Troubleshooting
Check if
any foreign
substances around
the fan.
YES
NO
NO
Remove the
foreign
substances.
Check if
any connector is
disconnected.
YES
Insert the
connector.
NO
Relay
connectors
have any connection
error.
YES
Correct the
connection of the
relay connectors.
{
Fan motor 1: relay connector or connectors of
compressor inverter PCB.
{
Fan motor 2: relay connector or connectors of
fan inverter PCB.
{
Fan motor 1: Both power supply wire and signal
wire are all white.
{
Fan motor 2: Both power supply wire and signal
wire are red in the PCB side
and white in the
motor side.
Check fan motor (fan motor 1 or 2) corresponding
to error code “
E7
” in the monitor mode of outdoor
unit PCB.
Turn the power supply OFF and wait for 10 minutes.
A
Check the color of relay connectors
Check the connection status of the connectors
Check in the monitor mode
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
