Service manual

x
62−11389
TABLE OF CONTENTS − Continued
PARAGRAPH NUMBER Page
8.8.7 High Pressure Switch 8−31..............................................................
8.8.8 Pressure Transducers 8−31.............................................................
8.8.9 Defrost Air Switch 8−31.................................................................
8.9 ELECTRICAL SYSTEM COMPONENT SERVICE 8−32........................................
8.9.1 Megohmmeter Test Procedure 8−32......................................................
8.9.2 Phase Reversal Module (PRM) 8−33.....................................................
8.9.3 Light Bar 8−34.........................................................................
8.9.4 Overload Ground Fault (OGF) 8−34......................................................
a. Operation 8−34......................................................................
b. OGF Checkout Procedure 8−34........................................................
8.9.5 Evaporator Heaters 8−34................................................................
8.9.6 Evaporator Blower & Motor 8−35.........................................................
8.9.7 Condenser Fan Assemblies 8−36........................................................
8.9.8 Battery Charger (BTYC) 8−37............................................................
8.9.9 Generator (GEN) 8−37..................................................................
a. Preventive Maintenance and Operating Precautions 8−37.................................
b. Generator Removal 8−38.............................................................
c. Generator Assembly Procedure 8−40...................................................
8.9.10 Sensor Checkout 8−41..................................................................
UNIT TROUBLESHOOTING 9−1...................................................................
9.1 ENGINE 9−1.............................................................................
9.1.1 Engine Will Not Start 9−1..............................................................
9.1.2 Engine Starts Then Stops 9−2..........................................................
9.1.3 Engine Will Not Shut Off 9−2...........................................................
9.1.4 Starter Motor Malfunction 9−2..........................................................
9.1.5 Malfunction In The Engine Starting Circuit 9−2............................................
9.1.6 Miscellaneous Engine Troubleshooting 9−3...............................................
9.2 BATTERY CHARGER 9−3.................................................................
9.3 GENERATOR 9−4........................................................................
9.4 REFRIGERATION / TEMPERATURE CONTROL 9−4.........................................
9.4.1 Unit Will Not Cool 9−4.................................................................
9.4.3 Unit Operates Long Or Continuously In Cooling 9−4.......................................
9.4.4 Unit Will Not Terminate Cooling 9−5.....................................................
9.4.6 Unit Will Not Terminate Heating 9−5.....................................................
9.4.7 Defrost Cycle Malfunction 9−5..........................................................
9.4.8 Abnormal Pressure 9−6................................................................
9.4.9 Abnormal Noise 9−6...................................................................
9.4.10 No Evaporator Air Flow Or Restricted Air Flow 9−6........................................
9.4.11 Evaporator Expansion Valve (EVXV) Malfunction 9−7......................................
9.4.12 Compressor Suction Modulation Valve (CSMV) Malfunction 9−7.............................
9.5 Speed Control System Diagnostics 9−8......................................................
9.6 Microprocessor Diagnostics 9−13............................................................