Hi,

I got the wine cooler which is divided to two independent sections. Each one is cooled separately ( setpoints are set on the display ).
For both of the sections is used the PCB 120515K1 board. At beginning one card did not start cooling after plugging into the power supply.
When I changed the capacitors ( as I found on this forum ), board started to work. Problem is now, that cooling is not switching OFF when setpoint is reached - fan and Peltier plate is still working on ( I suppose on minimum power - approx. 2,8Volts ). On the good board there is 2,0V.
I compared the temperature sensor NTC1 and voltage from control card for NTC2. All values are same.

Does anybody know what can I do / check in next? Where can be a problem?

Thank you in advance.

 

Welcome to AAC!

For starters, tell us the make and model of the wine cooler.
Post sharp photos of both sides of the PCB.

Which capacitors did you replace?

 

Hi,

here are the photos. I changed capacitors on the controll part of PCB 120515K1 board .