ā 105 ā
YES
YES
NO
NO
Is switching power circuit normal?
Is 3A fuse normal?
Operate the outdoor unit according
to the "Operation of the outdoor unit
indepndently".
What condition does the self-
disgnosis lamp indicate?
Are cords for connecting terminal
board, reactor, diode, smoothing
capacitor, etc. connected correctly
Securely insert them if loosened or
disconnected.
Is power circuit of compressor
normal? Refer to "Power circuit" for
details.
Is DC 35V output at C and D termi-
nals? (DC 33V - 40V is output in the
normal state.)
LD301: Blinking 10 times.
Half voltage error
Replace defective parts.
If 3A fuse has been blown, Q1,
switching transformer, ZD3, etc.
may be defective.
LD301: Blinks 9 times.
Communications error
YES
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