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Service Manual
Troubleshooting Guide
When indoor Fan does not operate.
Check connection condition of the CN-MOTOR CON-
NECTOR
Does the voltage of terminal of CN-DC/DC CONNECTOR in Indoor
unit that corresponds to the values in the table of page 70
Does the voltage of terminal of
CN-DC/DC CONNECTOR in
Outdoor unit corresponds to the
values in the table of page 70
Check the patterns and the
conditions of outdoor unit PCB
Assy's.
Check the condition of con-
necting wires between Indoor
and Outdoor unit.
Check the pattern and the
condition of Indoor unit PCB
Ass'y.
Check for any interference of Indoor Fan.
Does the voltage of each terminals of CN-MOTOR CONNECTOR in
Indoor unit corresponds to values in the Table of page 70
Check the motor of Indoor Fan
Indoor Fan may be off in the Soft Dry Mode(change to the Cooling Operation Mode).
Indoor Fan is off when Indoor pipe(coil) termperature is lower than 79°F.
(At that time, the defrost indicator is turn on.)
NO
YES
When indoor Fan does not operate.
Trouble 4