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temperature
too high and
running
continually
c. Ambient temperature too high
d. Exhaust restricted
e. Malfunctioning
fans
f.
Improper evaporator or
condenser airflow
g. Dirty
Condenser
h. Iced
evaporator
i. Sealed
system
problem
j.
Undercharge or overcharge
c. Check for installation location
d. Leave minimum 3 ft clearance for
the exhaust side and leave minimum
1 foot clearance for the fresh air
intake side
e. Check for both evaporator and
condenser fans
f.
Check for air restrictions
g. Clean
condenser
h. Defrost and reset temperature
i. Call service for checking loss of
refrigerant or restrictions
j. Call service to add or remove
refrigerant
6.Unit running
too long
a. Improper room insulation & seal
b. Exhaust restricted
c. Room too large
d. Ambient temperature extremely
high
e. Dirty Condenser
a. Check for insulation, gasket and door
opening
b. Leave minimum 3 ft clearance for the
exhaust side and leave minimum 1
foot clearance for the fresh air intake
side
c. Check for excessive size
d. Check for installation location or
increase setting
e. Clean condenser
7.Evaporator
freezing up
a. Evaporator air flow restriction
b. Unit not stopping due to air leak,
high ambient temperature or low
setting
c. Low ambient temperature
d. Bad thermostat or sensor
e. Refrigerant low or leak
f.
Expansion valve blockage
a. Check for fans, CFM
b. Check for seal, door opening,
ambient temperature and setting
c. Defrost the unit
d. Check for thermostat and sensor
e. Check for sealed system leakage
f.
Check for low side pressure
8.Water leak
a. Unit not level
b. Drain line restricted
c. Drip tray leak
d. Very high humidity
e. Wine room air leak
a. Check for installation
b. Check drain line
c. Check for if water leak but no
overflow
d. Use
dehumidifier
e. Check for air leak and if
condensation on the cooling unit
9.Circuit
tripping
a. Incorrect fuse or breaker
b. Incorrect
wirings
c. Overcharge of refrigerant
d. Condenser air restriction
e. Failed
components
a. Check for proper fuse or breaker
b. Check for wirings and connections
c. Call service for removing refrigerant
d. Check condenser fan
e. Call service
