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Page Title: Figure 3-5. Servicing condenser coil.
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TM 5-4120-270-15 Figure 3-5.  Servicing condenser coil. Section V.  TROUBLESHOOTING 3-12. General This  section  provides  information  useful  in  diagnosing and  correcting  unsatisfactory  operation  or  failure  of  the air     conditioner     and     its     components.     Each     trouble symptom stated is followed  by  a  list  of  probable  causes of  the  trouble.    The  possible  remedy  recommended    is described   opposite   the   probable   cause.      Any   trouble beyond the scope of organizational maintenance shall be reported to direct support maintenance. 3-13. Compressor Fails to Start Probable cause Possible remedy Power line failure Restore power. Selector switch improperly Set selector switch to set "COOL" Circuit breaker tripped Reset circuit breaker. High or low pressure Push reset button to close cutout switches tripped switch. Open or defective fuses Replace fuses (para 3-34). Probable Possible Loose, broken or defective Tighten loose connection electrical leads Repair leads as necessary. 3-14. Compressor   Starts   Normally,   but   Stops   on Overload Probable cause Possible Obstructed intake or ex- Clean out grilles and r haust air grilles move obstacles to air circulation High head pressure Clean condenser coil (para 3-11). Check condenser fan for damage or loose- ness.  Replace if defective (para 3-29). Defective condenser fan Replace condenser fan motor motor (para 3-36). 3-15. Reduced Cooling Capacity Probable cause Possible remedy Dirty or clogged air filters Clean or replace air filters (para 3-9). 3-6

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