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g. Low
voltage
h. Operating 60 Hz unit at 50Hz
i. Sealed
system
problem
j.
Undercharge or overcharge
g. Check power supply
h. Use proper 60 Hz
i. Call service for checking loss of
refrigerant or restrictions
j. Call service to add or remove
refrigerant
7. House circuit tripping
a. Incorrect fuse or breaker
b. Incorrect
wirings
c. Failed
components
a. Check for proper fuse or breaker
b. Check for wirings and connections
c. Call service
8. Noisy operation
a. Mounting area not firm
b. Loose
parts
c. Compressor overloaded due to high
ambient temperatures or airflow
restriction
d. Malfunctioning
components
a. Add support to improve installation
b. Check fan blades, bearings, cabinet
washers, tubing contact and loose
screws.
c. Check for airflow blockage
d. Call service for checking Internal
loose, inadequate lubrication and
incorrect wirings
