Troubleshooting

If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.

Trouble

 

Possible Cause

 

Remedy

 

 

 

 

 

Air conditioner does not run at all.

1.

Power failure.

1.

Restore power.

 

2.

Leakage circuit breaker tripped.

2.

Contact service center.

 

 

 

 

3.

Line voltage is too low.

3.

Consult your electrician or dealer.

 

4.

Batteries in remote control unit have

4.

Replace batteries.

 

 

run down.

 

 

 

 

 

OPERATION lamp blinks and air

Trouble in system.

Contact service center.

conditioner does not operate.

 

 

 

 

 

 

 

Compressor runs but soon stops.

Obstruction in front of condenser coil.

Remove obstruction.

 

 

 

 

 

Poor cooling performance.

1.

Dirty or clogged air filter.

1.

Clean air filter to improve airflow.

 

2.

Heat source or many people in room.

2.

Eliminate heat source if possible.

 

3.

Doors and/or windows are open.

3.

Shut them to keep the heat out.

 

4.

Obstacle near air intake or air

4.

Remove it to ensure good airflow.

 

 

discharge port.

 

 

 

5.

Thermostat is set too high for cooling.

5.

Set the temperature lower.

 

 

 

Clicking sound is heard from the air

In cooling operation, any plastic parts

This is normal, and the sound will soon

conditioner.

may shrink due to a sudden

disappear.

 

temperature change. In this event, a

 

 

 

clicking sound may occur.

 

 

 

 

 

 

 

OPERATION lamp lights but outdoor

1.

The use of cellular phones near the

1.

Turn off the power then restart the

unit will not run.

 

air conditioner may cause

 

air conditioner after a while.

 

 

disturbance to its normal operation.

 

 

 

 

 

2.

Consult your dealer.

 

 

 

 

 

 

 

 

 

 

Operating Range

The air conditioner is operable within the temperature ranges as listed below:

For Cooling Only Models : CM1972, CM2472, CM3172

 

Temperature

Indoor air temperature

Outdoor air temperature

 

 

 

 

COOLING

Max.

95 °F DB / 71 °F WB

115 °F DB

 

 

 

 

 

Min.

67 °F DB / 57 °F WB

67 °F DB

 

 

 

 

For Low Ambient Cooling Models : CLM1972, CLM2472, CLM3172

 

 

 

 

 

 

Temperature

Indoor air temperature

Outdoor air temperature

 

 

 

 

COOLING

Max.

95 °F DB / 71 °F WB

115 °F DB

 

 

 

 

 

Min.

67 °F DB / 57 °F WB

0 °F DB

 

 

 

 

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OI-806-24-EG

 

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Sanyo KMS0972, KMS1272 instruction manual Troubleshooting, Operating Range, Trouble Possible Cause Remedy

KMS1272, KMS0972 specifications

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