1Neither Indoor Unit nor Outdoor Unit Runs
The power is applied to the unit
Check the voltage between L and N of terminal block
Rating voltage
under 90%
Check the
Breaker or Fuse
Rating voltage more than 90%
Check the indoor unit display
is the display all off?
Yes
Press the ON/OFF switch of
Remote Control
Is the indoor unit display all off?
Pull out the power plug
and then insert the power plug
after 5 second
No
No
Self Diagnostic function is ON
Yes
Check according to
self Diagnostic function
Control P.C.B defect
No |
Control P.C.B is normal
Recheck from the beginning
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