TM 9-4120-402-14
Table 4-3. UNIT TROUBLESHOOTING - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. COMPRESSOR STARTS NORMALLY, BUT SOON STOPS. - continued
Step 3. Check to be sure condenser fan is operating (air being discharged from condenser air outlet).
Replace evaporator and condenser fan motor or condenser fan if defective. (See
NOTE
Condenser fan and conditioned air (evaporator) fan are both driven by the same motor. If one
fan is operating and the other is not, check for loose fan on motor shaft. If both fans are not
operating, check for loose electrical connections, defective motor controller (paragraph 4-37), or
defective motor (paragraph 4-47).
Step 4. If compressor stops again soon after restart in COOL mode, do not attempt another restart.
Notify supervisor.
4. COMPRESSOR STARTS NORMALLY, BUT HIGH PRESSURE CUTOUT SWITCH TRIPS.
Step 1. Check to be sure fabric cover is rolled up.
Roll up and secure fabric cover.
4-42
