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4. Compressor/Outdoor Fan won’t operate
Turn off Main Power
Operate "Cooling Mode ( )" by setting the desired temperature
of the remote controller to be less than the indoor temperature
by at least 2 F
When in the Fan Mode, Compressor/Outdoor Fan is stopped.
Check the sensor (for indoor temperature) is properly attached at
heat exchanger (evaporator).
When the sensor circuit for indoor temperature and connector have
a bad connection or are not connected, Compressor/Outdoor fan stopped
*Check the related circuit of R11(12.1K), R12(1.0K),R13(6.2K), R14(1.0K)
*Check the indoor temperature sensor is disconnected or not (about 10k
Ω/
at 77 F.
When the temperature around Outdoor PWB Ass'y is above 163 F
the compressor is stopped and only Outdoor fan is operating.
Check Relay (RY -COMP) for driving compressor
*When the power (About 230 Volts AC) is applied to the connecting
wires going to compressor, PWB Ass"y is normal.
*Check the circuit related to the relay (Outdoor unit).
Check Point COMP ON COMP OFF
Between Micom(No.
27) and GND
DC5V
DC0V
Between IC8(No. 16)
and GND
Below DC 1V
(app)
About DC 12V
Turn off Main Power
*Check the electrical wiring diagram of outdoor side.
*Check the abnormal condition of the component of Compressor/
Outdoor Fan Motor.
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Summary of Contents for AS0CD09 Series
Page 2: ......
Page 45: ...43 5 When Indoor Fan does not operate ...
Page 47: ...45 7 When a communication error occurs ...
Page 48: ...46 8 Indicators in case of connecting error INDOOR ...
Page 50: ...48 9 Voltage of Connectors according to Indoor Fan speed ...
Page 54: ...52 ...
Page 55: ...53 ...
Page 56: ...54 ...
Page 57: ...55 ...
Page 58: ...56 Ω Ω Ω Ω Ω Ω Ω Ω Ω ...
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Page 65: ...63 Illustrated Parts Catalog ...
Page 66: ...64 Illustrated Parts Catalog ...
Page 68: ...66 Illustrated Parts Catalog ...
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Page 71: ...69 Illustrated Parts Catalog ...
Page 72: ...70 Illustrated Parts Catalog ...