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e. Dirty Condenser
f.
Improper condenser cooling
g. Iced evaporator
h. Refrigeration system restriction
i.
Refrigerant leak
j.
Undercharge or overcharge
k. Failed components
e. Clean condenser
f.
Check for water flow
g. Defrost and reset temperature
h. Call service
i.
Call service
j.
Call service
k. Call service
7. Unit running too
long
a. Improper cellar insulation & seal
b. Cellar too large
c. Dirty Condenser
d. Improper condenser cooling
a. Check insulation, gasket and door
opening
b. Check for excessive size
c. Clean condenser
d. Check for water flow
8. Temperature
high,
compressor
stopping and
starting but
very short
running time
a. Failed components
b. Improper condenser cooling
c. Overcharge of refrigerant
d. Discharge or suction
pressure too high
a. Check compressor windings, start
relay and overload protector.
b. Check for condenser water flow
c. Call service for removing refrigerant
d. Call service for information
9. Evaporator fan
running too
long
a. Post-compressor
fan
running
mode for humidity modulation
a. Reset FON
10. 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
11. 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
12. Evaporator
freezing up
a. Evaporator air flow restriction
b. Improper condenser cooling
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 water flow
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
13. Water leak in
wine cellar
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
14. Excessive
condensate in
wine cellar
a. Air leak in the wine cellar
causing excessive condensate
b. High humidity causing
excessive
a. Check for any air leak
b. Use drain line
