Troubleshooting Chart - Vinotemp WINE-MATE VINO3500HZD Service Manual

III. Troubleshooting Chart
This Troubleshooting Chart is not prepared to replace the training required for a
professional refrigeration service person, not is it comprehensive.
Complaint
a. Power cord unplugged
1.Unit not
b. No power to unit
running
c. Setting
d. Differential too high
e. Incorrect or loose wirings
f.
g. Defrost light blinking
h. Compressor light blinking
a. Post-compressor
2.Fan running
continually
a. Air sensor
3.Temperature
fluctuating
4.Temperature a. Displaying
high, unit
stopping and
b. Setting too high
starting but
short
running time
a. Incorrect voltage
5. Temperature
b. Failed thermistor
high,
compressor
c. Failed components
stopping and
starting but d. Improper condenser airflow
e. Dirty condenser
short
f.
running time
g. Discharge or suction pressure
Table 3-1 Troubleshooting Chart
Possible Causes
higher than
temperature
Low voltage
fan
mode for humidity modulation
°
55 F, air
contacting the evaporator or in
the supply air
Overcharge of refrigerant
too high
- 19 -
Response
a. Check for power cord plug
b. Check power at receptacle & fuses
ambient c. Lower temperature setting
d. Decrease the value as to 4
e. Check all wirings and connections
f. Contact an authorized electrician
g. Unit is under defrost mode
h. Unit waits for anti-short cycle delay
running a. See 4) to set FON = 0
a. When using an air sensor, the wine
bottle temperature
controlled
temperature. If the set-point is 55
with the differential 4F, the cooling
unit turns
temperature and turns off at 55
air temperature. The average air
temperature is 57
wine temperature is around 57+/-
°
0.5 F. The air is light enough to
change so quickly that it maintains
relatively
temperature that would prevent wine
bottle temperature from varying.
a. Move the air sensor away from the
sensor
evaporator and supply air
b. Lower setting
a. Check for voltage
b. Check thermistor by placing it in ice
water and measuring resistance
c. Check compressor windings, start
relay and overload protector.
d. Check for condenser fan
e. Clean condenser
f. Call service for removing refrigerant
g. Call service for OEM information
°
F
is mainly
by the average air
°
F
°
on at 59 F of air
°
F of
°
F, and then the
constant average