Neither Indoor Unit Nor Outdoor Unit Runs - Daewoo DSA-151L Service Manual

Neither Indoor Unit nor Outdoor Unit Runs

The power is applied to the unit
Check the voltage between
N of terminal block
Check the indoor unit display
is the display all off?
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 seconds
Control P .C.B is normal
Recheck from the beginning
L
and
Rating voltage more than 90%
YES
Rating voltage
under 90%
NO
NO
Check according to
self Diagnostic function
Control P .C.B defect
29
Check the
Breaker or Fuse
Self Diagnostic
function is ON
YES
NO