Table 4-1. Troubleshooting (continued)
TEST OR INSPECTION
COMPRESSOR WILL NOT START (continued)
Inspect and test circuit breaker (paragraph 3-12m).
Replace damaged or defective circuit breaker.
Inspect and test thermostat (paragraph 3-12d).
Replace damaged or defective thermostat.
Inspect and test selector switch (paragraph 3-12b).
Replace defective or damaged selector switch.
Inspect and test compressor relay (paragraph 3-12f).
Inspect and test phase sequence relay (paragraph 3-12f).
Replace damaged or defective phase sequence relay.
Inspect for loose electrical connections and defective wiring (figure 3-8).
Tighten loose connections. Repair or replace defective wiring.
Replace damaged or defective cut-out switch.
Adjust cut-out switch if out of
adjustment (paragraph 4-12b).
COMPRESSOR SHORT CYCLES
Check air conditioner operating pressures for excessive refrigerant in system (table 4-3).
Release excess refrigerant from system until proper charge is attained (figure 4-2).
Inspect and test liquid line solenoid valve (paragraph 3-13d).
Repair or replace damaged or defective valve (paragraph 4-17).