Section IV. Troubleshooting - TM-5-4120-356-140030

TM 5-4120-356-14

a . I f your equipment f a i l s t o o p e r a t e , troubleshoot with proper equipment.

R e p o r t a n y d e f i c i e n c i e s u s i n g t h e proper forms, see TM 38-750.

b . Equipment is Not Ready/Available If: column. This column shall contain

t h e criteria that will cause the equipment to be classified as not ready/available

f o r r e a d i n e s s r e p o r t i n g p u r p o s e s . A n entry in this column will:

( 1 ) Identify conditions that make the equipment not ready/available

for readiness reporting purposes.

( 2 ) Deny use of the equipment until corrective maintenance has been

performed.

S e c t i o n IV. Troubleshooting

TROUBLESHOOTING TABLE

3-7.

a . T h e t r o u b l e s h o o t i n g t a b l e ( t a b l e 3 - 1 ) l i s t s t h e m o s t common malfunctions

which you may find during the operation or maintenance of the air conditioner or it's

components.

Y o u should perform the test/inspections and corrective actions in the

order listed.

b . This manual cannot list all malfunctions which may occur. However, all

tests or inspections and corrective actions are listed for most common malfunctions.

If a malfunction is not listed, or is not corrected by listed corrective action,

notify your supervisor.

T a b l e 3-2. Organizational Troubleshooting

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

AIR CONDITIONER FAILS TO START

Controls not properly set.

Step 1.

Set controls for starting. (Refer to figure 2-1.)

Power supply leads loose or not connected.

Step 2.

Check power supply leads and tighten, or connect leads

as required.

Step 3.

P u l l , then push circuit breaker knob. (Refer to figure 2-2.)

2. AIR CONDITIONER NOISY DURING OPERATION

Panels loose.

Step 1.

Tighten fasteners or replace defective fasteners as required.

3-5