TM-5-4310-389-14
Table 3-2. Unit Troubleshooting Procedures (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
14.
Automatic drain does not close.
Step 1. Check electrical circuit on condensate solenoid. Check supply lines.
15.
Automatic drain leaks and blows off.
Step 1. Check to see if drain valves are dirty. Remove and clean valves. Notify Direct Support
Maintenance.
16
Compressor speed low.
Step 1. Check to see if drive belts have proper tension. Adjust idler pulley.
Step 2. Check to see if engine is running at rated rpm. Increase speed to correct rpm. Notify Direct
Support Maintenance.
Step 3. Check clutch for slippage. Adjust clutch.
ENGINE
17.
Engine does not turn over.
Step 1. Improper starting procedure. Follow proper starting procedure.
Step 2. Check to see if battery is defective or dead. Recharge or replace.
Step 3. Check to see if cable connections of starter motor circuit are oxidized. Replace cable
connections.
Step 4. Check to see if cable connections of starter motor circuit are loose. Tighten connections.
Step 5. Check to see if starter motor is defective or pinion does not engage. Notify Direct Support
Maintenance. Replace starter motor.
Step 6. Check to see if starting aid is defective. Notify Direct Support Maintenance. Replace
starting aid or ensure ether reservoir is full.
18.
Engine fails to start or difficult to start.
Step 1. Improper starting procedure. Follow proper starting procedure.
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