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70 Multi type Air Conditioner
Troubleshooting Guide
When indoor Fan does not operate.
Check connecting condition of the CN-MOTOR CON-
NECTOR
Does the voltage of terminal of CN-DC/DC CONNECTOR in
Indoor unit corresponds to the values in the table of page 56
Do the voltage of terminal of
CN-DC/DC CONNECTOR in
Outdoor unit corresponds to the
values in the table of page 56
Check the patterns and the
conditions of outdoor unit
PWB Assy's.
Check the connecting condi-
tion and disconnection of
connecting wires between
Indoor and Outdoor unit.
Check the pattern and the
condition of Indoor unit PWB
Ass'y.
Check the 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 69
Check the motor of Indoor Fan
Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode).
Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F.
(At that times, Defrost indicator is turned on)
NO
YES
When indoor Fan does not operate.
Trouble 4