TROUBLESHOOTING PROCEDURES FOR AIR CONDITIONER, SPLIT PACK

TM9 4120-423-14&P

UNIT TROUBLESHOOTING

THIS WORK PACKAGE COVERS: Unit Troubleshooting

Tools and Special Tools

Personnel Required

Unit level technician

Equipment Conditions

Air conditioner installed in shelter

WARNING

Disconnect input power before performing internal electrical troubleshooting. Voltages

used can be lethal. Shutting the unit off at the control module does not disconnect power

to the various components of the air conditioner.

MALFUNCTION

AIR CONDITIONER WILL NOT START IN ANY MODE

TEST OR INSPECTION

Step 1.

Press run indicator light.

CORRECTIVE ACTION

If light illuminates, go to step 6.

TEST OR INSPECTION

Step 2.

Check to see if air conditioner power circuit breaker in shelter has been turned off

or tripped

CORRECTIVE ACTION

Reset circuit breaker

0010 00-1