User Guide

0
4. Compressor/Outdoor
Fan are unable to
drive.
Turn
on Main
Power
Operate "Cooling Mode(
* )°
by setting the desired temperature of the
remote controller is
less
than one of the
indoor
temperature by
20F
at
least.
When in Fan Mode,
Compressor/Outdoor
Fan is stopped.
V(
Check the sensor
for
indoor temperature
is attached
as close as
to
be
effected by
the temperature of Heat Exchanger(EVA).
When the sensor circuit for indoor temperature and
connector
are
in bad
connection or
are
not
engaged,
Compressor/Outdoor Fan is stopped.
"
Check the related circuit
of
R11(12.1 K), R12(1.OK), R13(6.2K), R14(1.OK)
Micom (No.55) (indoor unit).
"
Check the indoor temperature sensor is disconnected or not(About 101Q2
/
at 25°C).
When the temperature around
Outdoor PWB Ass'y is
above
163"F the
compressor is stop and only Outdoor Fan is operating.
Check Relay(RY - COMP) for driving compressor.
"
When the
power(About AC2
0O
V) is applied to the
connecting wire termi-
nal
support
transferred to compressor, PWB
Ass y
is normal.
" Check the circuit related to the relay(Outdoor unit).
Check pant COMP
ON
COMP OFF
Between Micom(No.
27)
and GND
DCSV DCOV
Between
I B(No. 16) Below DC
IV
and
GND
(app)
About
DC12V
Tum
off Main
(
Power
V
" Check the electrical wiring diagram of outdoor side.
" Check the
abnormal condition for the component of Compressor/Outdoor
Fan
Motor.
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