TM 5-2420-231-23-1
0030
Table 1. Heating and A/C Troubleshooting Procedures - Continued.
030
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. A/C Does Not Blow Cold
Test Step 1. Verify Correct Operation
Air When A/C
of HVAC Blower Motor and A/C.
Temperature Control Is
1. Start and operate machine until
Set to Maximum Cold
engine reaches normal operating
temperature (TM 5-2420-231-10).
2. Turn blower fan switch (Figure 15,
HVAC Blower Motor Operates at
Item 1) to each speed setting (TM
Each Setting - Proceed to step 3.
5-2420-231-10), and verify that
HVAC Blower Motor Does Not
HVAC blower motor operates at
Operate at One or More Speeds -
each position.
Diagnose HVAC blower motor (WP
0031) and then proceed to Test Step 9.
HVAC Blower Motor Does Not
Operate at Any Speed - Diagnose
HVAC blower motor (WP 0031) and
then proceed to Test Step 9.
Figure 15. Blower Fan Switch.
0030
