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TM5-4120-387-14
TABLE 4-2. TROUBLESHOOTING (Cont.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 10.
Check operation of mode selector switch (S).
Test switch.
(See para 4-47.) Replace switch, if defective.
Step 11.
Check operating of fan toggle switch (S7).
Test switch.
(See para 4-48.) Replace switch if defective.
Step 12.
Check that high or low pressure cut-out switches (S6 and S7) are
not open.
PUSH and release TO RESET.
Step 13.
Reset (PUSH) PRESSURE CUT-OUT switch(es) and restart unit.
If unit does not start, notify your supervisor and Direct
Support Maintenance.
2.
CONDITIONED AIR (EVAPORATOR) AND CONDENSER FANS BOTH RUN, BUT COMPRESSOR DOES
NOT START AFTER TIME DELAY.
Step 1.
Check to see if HIGH or LOW PRESSURE CUT-OUT switch has tripped.
PUSH and release TO RESET.
4-33
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