Cooling Insufficient

69. Cooling Insufficient

Possible Remedy

Probable Cause

a. Replace expansion valve

a. Expansion valve defective.

Replace compressor assembly

Compressor assembly defect-

ive.

c. Recharge refrigerant system

c. Refrigerant charge low.

Cooling Excessive

Possible Remedy

Probable Cause

a. Replace expansion valve

a. Expansion valve defective.

71. Air Conditioner Noisy During Operation

Possible Remedy

Probable Cause

a. Replace compressor assembly

a. Compressor assembly defect-

ive.

REMOVAL AND INSTALLATION OF MAJOR COMPONENTS

Section V.

AND AUXILIARIES

72. General

a. The air conditioner, after it is started, operates automatically.

The relationship of automatic components, controls, and instruments are

explained in the operation analysis for the maintenance of the air con-

ditioner.

b. A wiring diagram (fig. 6) and refrigerant cycle diagram (fig.

11) are included for maintenance of the components.

c. Procedures for relieving refrigerant charge, leak testing,

evacuation, and charging the refrigerant system are included for ser-

vicing the refrigerant system.

d. General maintenance of components such as lines, tubing, valves

and fittings are included in this section.

73. Wiring Harness Leads

The electrical system in the air conditioner is complete by indivi-

dual wires laced or enclosed in a harness.