TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Air Conditioning Does Not Blow
Test Step 10.
Cold When Maximum Cooling is
Selected - Continued
N OT E
This test assumes blower motor is working properly in all speeds,
A/C system is correctly charged, ambient temperature is within
operating range for A/C operation, and temperature control is set
to coldest setting. An A/C system that is overcharged or under-
charged may prevent A/C signal from reaching machine ECM.
1. Select status screen (Figure
Refrigerant Monitor Circuit Sta-
31, Item 1) and Automatic
tus Displays Closed and Com-
Temperature Control data list
pressor Clutch Solenoid Status
(Figure 31, Item 4) on MSD
Displays ON - Proceed to Test
(WP 0013). View Air Condi-
Step 12.
tioner Refrigerant Monitor Cir-
A/C Refrigerant Monitor Circuit
cuit Status (Figure 31, Item 2)
Status Parameter Displays Open
and Air Conditioner Compres-
- Proceed to Test Step 11.
sor Clutch Solenoid Status
(Figure 31, Item 3).
Figure 31. A/C Refrigerant Monitor Circuit and Compressor Clutch Solenoid Status.
0021
