Troubleshooting by Indication on the Remote Controller
342
Troubleshooting
Note:
Wiring check operation may not be successful if carried
out after the outdoor unit has been OFF for more than 12
hours, or if it is not carried out after running all connected
indoor units in the fan mode for at least an hour.
Is the check
operation carried
out?
Are the
stop valves opened?
NO
NO
NO
YES
YES
YES
Is indoor -
outdoor and
outdoor - outdoor unit
transmission wiring
normal?
Open the stop
valve.
NO
After fixing
incorrect wiring,
press and hold
the RESET
button on the
outdoor unit main
PCB for 5
seconds.
∗
The unit will not
run for up to 12
minutes.
Wiring check
operation may
not have been
carried out
successfully.
Replace the
indoor unit PCB.
YES
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Is indoor -
outdoor and
outdoor-outdoor unit
transmission wiring
normal?
Содержание VRVII
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