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#7040748 - Revision A - September, 2016
MODEL UW-24
MODEL UW-24
Troubleshooting Guides
Error Code
Test / Action
EC 05
EC 06
EC 07
EC 08
EC 10
or
EC 12
EC 11
or
EC 13
EC 15
a. Check upper compartment thermistor electrical connections and continuity from thermistor to J2 on control
board. Reconnect / repair connections.
b. Check upper compartment thermistor for 30,000 to 33,000 ohms at 32°F. Replace thermistor if defective.
a. Check upper compartment evaporator thermistor electrical connections and continuity from thermistor to
J2 on control board. Reconnect / repair connections.
b. Check upper evaporator thermistor for 30,000 to 33,000 ohms at 32°F. Replace thermistor if defective.
a. Check lower compartment thermistor electrical connections and continuity from thermistor to J2 on control
board. Reconnect / repair connections.
b. Check lower compartment thermistor for 30,000 to 33,000 ohms at 32°F. Replace thermistor if defective.
a. Check lower compartment evaporator thermistor electrical connections and continuity from thermistor to J2
on control board. Reconnect / repair connections.
b. Check lower evaporator thermistor for 30,000 to 33,000 ohms at 32°F. Replace thermistor if defective.
a. Check room ambient temperature. Unit performs best between 60°F - 90°F.
b. Check for door obstructions, door seal and door adjustment issues; Remove obstruction, align door.
c. Check switch depressor; Reposition or replace.
d. Check cleanliness of condenser; Clean condenser.
e. Check for obstructions at appropriate compartment fan blade; Remove obstruction.
f.
Check appropriate compartment evaporator fan blade spacing. Adjust if needed.
g. Check appropriate fan motor and its electrical connections; Repair or replace.
h. Check door switch and its electrical connections; Repair or replace.
i.
Check resistance of appropriate compartment thermistor for 30,000 to 33,000 ohms at 32°F. Replace if
defective.
j.
Initiate manual valve activation mode for appropriate compartment:
1.
Check for proper voltage from J3 on board to appropriate evaporator fan motor. Replace or repair
defective components.
2.
If opposite evaporator temperature drops, check for proper wiring at valve; repair wire connections. If
wiring is correct, replace valve assembly.
k. Check AMP draw of compressor. If high by 15% or more, replace compressor.
l.
Check sealed system for leaks; Repair replace defective parts.
a. Check room ambient temperature. Unit performs best between 60°F - 90°F.
b. Check for door obstructions, door seal and door adjustment issues; Remove obstruction, align door.
c. Check appropriate compartment thermistor electrical connections and continuity from thermistor to J2 on
control board. Reconnect / repair connections.
d. Check resistance of appropriate compartment thermistor for 30,000 to 33,000 ohms at 32°F. Replace if
defective.
a. Initiate manual valve activation mode for upper compartment:
1.
Check for proper voltage from J3 on board to appropriate evaporator fan motor. Replace or repair
defective components.
2.
If lower evaporator temperature drops, check for proper wiring at valve; repair wire connections. If
wiring is correct, replace valve assembly.
b. Initiate manual valve activation mode for lower compartment:
1.
Check for proper voltage from J3 on board to appropriate evaporator fan motor. Replace or repair
defective components.
2.
If upper evaporator temperature drops, check for proper wiring at valve; repair wire connections. If
wiring is correct, replace valve assembly.
c. Check AMP draw of compressor. If high by 15% or more, replace compressor.
d. Check sealed system for leaks, or restrictions; Repair replace defective parts.
WINE STORAGE ERROR CODE TROUBLESHOOTING GUIDE
NOTE:
After repairs, always clear Error Codes by pressing ALARM key for 15 seconds.
