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 TM5-4120-383-14
TROUBLESHOOTING-Continued
Table 5-1.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Check that the LOW and HIGH PRESSURE cutoff
Step 2.
switches are not tripped.
Press and release the LOW and HIGH PRESSURE
If switches do not remain
switches to RESET.
(See para
in, check and/or replace switches.
Check that the compressor motor thermal cutoff
Step 3.
(See para 5-32.)
switch is operational.
Replace compressor if thermal cutoff switch is
defective.
(See
Inspect and check compressor for burnout.
Step 4.
Replace burned out compressor.
COMPRESSOR SHORT CYCLES.
2.
Check for obstructions in front of condenser
Step 1.
screen.
Remove obstructions and/or roll up and secure
canvas cover.
(See para 4-40.)
Check for dirt in condenser coil.
Step 2.
Clean condenser coil.
Check if HIGH PRESSURE cutoff switch RESET is out.
Step 3.
Push and release HIGH PRESSURE switch to RESET.
Use great care to avoid contact with liquid
refrigerant or refrigerant gas being
discharged from any container under pressure.
Sudden and irreversible tissue damage can
result from freezing.
5-5
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