Table 3-2. Organizational Troubleshooting

TM 5-4120-364-13

Table 3-2. Organizational Troubleshooting

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

AIR CONDITIONER FAILS TO START

Step 1. Controls not properly set.

Set controls for starting.

S t e p 2. Power supply leads loose or not connected.

C h e c k leads and tighten or connect leads a s r e q u i r e d .

AIR CONDITIONER NOISY DURING OPERATION

Step 1. P a n e l s l o o s e .

T i g h t e n fasteners or replace defective f a s t e n e r s a s r e q u i r e d .

See figure 3-4 to replace fasteners.

Step 2. Loose component.

Tighten component.

INSUFFICIENT COOLING

Step 1. T h e r m o s t a t improperly set.

Set thermostat for cooler operation.

Step 2. One or more shutoff v a l v e ( s ) n o t o p e n .

R e f e r to figure 3 - 1 a n d o p e n s u c t i o n l i n e s h u t o f f v a l v e ( s ) .

NO COOL AIR DISCHARGE

Step 1. S e l e c t o r s w i t c h i n w r o n g p o s i t i o n .

Set selector switch for cooling.

Step 2. T h e r m o s t a t improperly set.

Set thermostat for cooling.

Step 3. A i r f i l t e r i s d i r t y o r c l o g g e d .

Refer to figure 3-8 remove and clean air filter.

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