Vinotemp VT-12TEDS User manual

SERVICE MANUAL FOR
VT-12TEDSVT-16TEDSW, VT-28TEDS-T
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 Tools for repair
1Screw driver
2 Multimeter
3 Plier
4 Electric Iron

 Problems and troubleshooting
1  The wine cellar does not work
(1). 
Check to ensure the power plug is installed properly, if not connect or loosen, please connect it
properly
(2).
If there is no problem with the power plug, please unplug the machine and open the back cover.


Plug it in after open the back cover

Test the voltage at the connector of the power cord, (please take care of the high voltage)
.  AC100120V 
If the voltage is not within AC100120V, that means the power cord is broken, please change the
power cord.
 Change the power cord

.  AC100120V 
a.  DC1213V 
If the voltage is within AC100120V, then test the output voltage, if the voltage is not within DC12
13V, then it must be the problem of the PCB, change the PCB.
 Change PCB

 Cut the fastener
 NTC
Here is for connecting the anti-frost NTC
from the cooling system

Here is for connecting the heat
fan

Here is for connecting the cold
fan

Here is for connecting the
temperature controller here

 disconnect all the connectors
 Take out the screws on the PCB
 Melt the two wires from thermoelectric module on the cooling system

b.  DC1.913V  LED 
Test the voltage with Multimeter, if voltage is DC1.913V, but the temperature LED no display,
 Test the input connect on the PCB for the temperature controller

DC If there is no DC voltage, it means the PCB is broken, change a new
one.
 DC7.68.1V  If there is a voltage within DC7.68.1V, then test the temperature
controller
 Pull out the magnetic seal
 Take out the three screws

 Take out the temperature controller
 Check whether the connectors are loosen

 DC7.68.1V  Test the voltage on the connector
 If the voltage is not within DC7.68.1V, that means the wire is broken, change it.
 If the voltage is within DC7.68.1V, that means the temperature control is
broken, change it.
 Take out the screws
 LED 

Here is for the interior LED light
wires, and temperature control
wires
8V Temperature
controller power wires 8V
 Temperature
controller power wires 
 NTC
 NTC
Wires for sensors

 Change a new temperature control PCB
2. The inside temperature is not low enough
Check whether the temperature setting is the one you want
 Checkwhetherthedoorisopenedtoooften.
 Checkwhetherthedooriswellclosed
 Check whether the magnetic seal on the door frame is in good condition
 Check whether there is too much dust on the anti-dust net,
Check whether the ventilation on the two sides are hided.

 Check whether the cold fan is working well
 If it is not working, check whether the connectors are loosen.
, If the connectors are good, then change the cold fan

 Check whether the hear fan(s) are working well
 If it is not working, check whether the connectors are loosen

 If the connectors are not loosen, then change new the fan(s)

If both of the cold fan and hear fan(s) are working well
 DC913Vthen test the output voltage, check whether it is within DC913V
If it is not, change the temperature controller
 DC913V  If it is within DC913V, change the cooling system


3 Noise during operation
 Check whether the unit is placed evenly.
 Check whether there is something in the heat
fan(s), if yes, clean it.
 Check whether there is something in the cold fan, if yes, clean it.

 If there is some ice on the cold aluminum, turn off the machine for
some time