Hitachi RAS-25WX8 Manuel De Maintenance page 148

ING T
Is the indoor unit "timer lamp" blinking?
Run the unit using the following remote controller settings:
mode.
mode.
Does the operation lamp light or blink?
Running
eck the refrigerating cycle.
In the event of overload limit cut or OH
thermistor temperature rise, use the
self-diagnosis memory function because
such failure may evade detection due to
ambient temperature variations or other
factors.
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INDOOR/OUTDOOR
No
Yes
Is the compressor running?
Not running
Open the outdoor unit and observe the self-diagnosis
. ow many times the lamp blinks.
Blinks other than 1 time.
manuals search engine
T
Yes
Open the indoor unit and check the voltage
between pins Nos.
No
indoor unit control P.W.B.
Normal:
Blinks 1 time.
service switch?
instructions
No
ck the outdoor
electrical parts.
– 147 –
P
Trouble shoot according to the
self-diagnosis lighting mode.
and
Is the voltage correct?
Brown
Red
No
ck if the connecting cable
connected incorrectly? inserted
incompletely? or disconnected?
for operating
Yes
ck the indoor
electrical parts.
Yes