Si20-701_B
Troubleshooting by Remote Controller
390
Is
indoor -
outdoor and
outdoor - outdoor unit
transmission wiring
normal?
Lamp
does not go OFF for
12 minutes or
more.
YES
NO
YES
YES
NO
Press and hold
the RESET
button on the
outdoor unit PCB
for 5 seconds.
NO
Fix the
indoor/outdoor or
outdoor/outdoor
unit transmission
wiring.
Operation
ready lamp (H2P) is
blinking.
Disconnect
the outdoor-
outdoor unit
transmission wiring,
and then check with a
single system
whether or not
it is
normal.
NO
Replace the
outdoor unit PCB
(A1P).
YES
Mount the DIII-
NET expander
adaptor.
A