Whirlpool ACD052MM, Service Manual

Page: 41 / 52

5-3
PROBLEM PROBABLE CAUSE CORRECTION
6. Compressor stops and
starts. Too short run-
ning time.
6a. Incorrect voltage.
6b. Temperature control set too warm.
6c. Failed thermistor or thermostat.
6a. Check for proper voltage.
6b. Instruct customer.
6c. Check thermistor by placing it
in ice water and check resis-
tance (see chart on page 4-1).
6d. Check compressor windings,
all wiring, overload and capaci-
tor for shorts.
6e. Check for wrong motor, blower
wheel, or fan blade. Check for
low voltage, binding of fan
blade, blower wheel, or motor
bearings.
6f. Clean condenser.
6d. Failed compressor, controls for com-
pressor, or incorrect wiring.
6e. Fan motor too slow or condenser airflow
blocked.
7. House circuit tripping. 7a. Incorrect fuse or breaker. 7a. Check for proper fuse or
breaker. Check amp draw.
7b. Check wiring and connections.
Check operation of all compo-
nents.
7b. Failed component or incorrect wiring.
8. Noisy operation. 8a. Loose parts. 8a. Check fan blades, cabinet,
washers, tubing contact or
vibration, or loose screws.
8b. Normal operation. 8b. “Pinging” sound noticed as drops of
water condensate hit fan blade.
8c. Mounting area not firm. 8c. Add support kit or improve
installation.
8d. Loose internally, inadequate
lubrication, improper voltage,
remove airflow blockage.
8e. Fan blades loose or rubbing,
bad bearing, or fan out of bal-
ance.
8f. Tighten compressor nuts
slightly to remove vibration
transmission.
8d. Compressor could be overloaded due to
high ambient temperatures, or airflow
restriction.
8e. Fan motor.
6f. Condenser blocked.
8f. Compressor mounting nuts loose.