TM 9-4120-388-14
Table 4-2. Unit Troubleshooting (Cont.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4. Check circuit breaker (CB1).
Replace circuit breaker if defective.
Reset compressor circuit breaker and restart in COOL mode.
If circuit breaker trips again soon after restart in COOL mode, do not attempt
another restart, and notify your supervisor for refrigeration system troubleshoot-
ing.
4. COMPRESSOR STARTS NORMALLY BUT HIGH OR LOW PRESSURE CUT-OUT SWITCH SOON TRIPS.
Step 1. Be sure fabric cover is rolled up.
Roll up and secure fabric cover.
Step 2. Be sure there is no restriction to air flow through condenser section.
Clean all obstructions from condenser inlet, outlet, and condenser coil.
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