A/C TROUBLESHOOTING INTRODUCTION
This chapter provides information for identifying and correcting malfunctions which may develop while operating the
A/C system in the armored M915A2P1 and M916A1P1.
The A/C Troubleshooting Symptom Index in WP 0012 00 lists common malfunctions which may occur and refers you to
the proper page in WP 0013 00 for a troubleshooting procedure.
Refer to electrical schematic diagram and component identification at the end of this work package.
Before performing troubleshooting, read and follow all safety instructions found in the Warning Summary at the front of
The A/C Troubleshooting Symptom Index (WP 0012 00) cannot list all malfunctions that may occur, nor all tests or
inspections and corrective actions. If a malfunction is not listed, or is not corrected by the listed corrective actions,
notify your supervisor.
When troubleshooting a malfunction:
Locate the symptom or symptoms in WP 0012 00 that best describe the malfunction.
Turn to the page in WP 0013 00 where the troubleshooting procedures for the malfunction in question are
described. Headings at the top of each page show how each troubleshooting procedure is organized: MALFUNC-
TION, TEST OR INSPECTION (in step number order), and CORRECTIVE ACTION.
Perform each step in the order listed until the malfunction is corrected. DO NOT perform any maintenance task
unless the troubleshooting procedure tells you to do so.
EXPLANATION OF COLUMNS
The columns in Table 1 in WP 0013 00 are defined as follows:
MALFUNCTION. A visual or operational indication that something is wrong with the equipment.
TEST OR INSPECTION. A procedure to isolate the problem in a system or component.
CORRECTIVE ACTION. A procedure to correct the problem.