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k. Undercharge or overcharge
l.
Failed components
k. Call service
l.
Check compressor windings, start relay
and overload protector
7. Unit running too
long
a. Improper cellar insulation & seal
b. Exhaust restricted
c. Cellar too large
d. Ambient temperature > 90°F
e. Dirty Condenser
f. Improper condenser air flow
a. Check insulation, gasket and door
opening
b. Leave minimum 3 feet clearance for the
hot air exhaust side and leave minimum
1 foot clearance for the ambient air
intake side
c. Check for excessive size
d. Check for installation location
e. Clean condenser
f. Check for fan and air short circulation
8. Condenser fan
running but
compressor not
running
a. Incorrect or loose wirings
b. Failed components
c. Liquid refrigerant in the compressor
a. Check all wirings and connections
b. Check start relay, start capacitor,
overload protector, compressor.
c. Call service.
9. Compressor
running but
condenser fan
not running
a. Fan blade stuck
b. Incorrect or loose wirings
c. Failed motors
d. Fan cycle control
a. Check for proper clearance
b. Check all wirings
c. Call service
d. Check for setting
10.Temperature
high,
compressor
stopping and
starting but very
short running
time
a. Failed components
b. Improper condenser airflow
c. Dirty condenser
d. Overcharge of refrigerant
e. Discharge or suction pressure too
high
a. Check compressor windings, start relay
and overload protector.
b. Check for condenser fan
c. Clean condenser
d. Call service for removing refrigerant
e. Call service for information
11.Evaporator fan
running too long
a. Post-compressor fan running mode
for humidity modulation
a. Reset FON
12. Evaporator fan
running but
condensing unit
not running
a. Incorrect or loose wirings
b. Failed components
c. Low refrigerant
a. Check all wirings and connections
b. Check start relay, start capacitor,
overload protector, compressor.
c. Call service
13.Temperature low
a. Low temperature setting
b. Low ambient temperature
c. Air probe fault
d. Temperature controller fault
a. Raise the setting
b. Move to another location
c. Check probe connections or change a
new one
d. Change a new one
14.Evaporator
freezing up
a. Evaporator air flow restriction
b. Condenser air flow restriction
c. Not stopping due to air leak, high
ambient
temperature
or
low
temperature setting
d. Defective controller or probe
e. Low ambient temperature
f. Initially working then stopping,
moisture in the system
g. Refrigerant low or leaking
h. Expansion valve blockage
a. Check for fans and CFM
b. Check for fans and CFM
c. Check for seal, door opening, ambient
temperature and temperature setting
d. Check for controller and probe
e. Change defrost settings
f. Call service
g. Call service
h. Call service
15.Water leak
a. Air leak in the wine cellar causing
excessive condensate
b. High humidity causing excessive
condensate
c. Evaporator air flow restriction
d. Drain restricted or unit not level, and
water overflowing
e. Drip tray leak (No overflow but leak)
a. Check for air leak
b. Use drain line
c. Check supply air flow or air TD
d. Clean the drip tray and drain line
e. Seal the leak using silicone sealant
16.Excessive
condensate in
wine cellar
a. Air leak in the wine cellar causing
excessive condensate
b. High humidity causing excessive
condensate
a. Check for any air leak
b. Use drain line
