Thanks for all the replies, the system is ECC, so yes, it is the module that is often called resistor, but it is not, it is pretty complex circuit that controls the blower motor speed, In MCC there was I believe a module with just beefy resistor to control the motor speed. The ECC power stage module...

Hi, my blower power stage died, I tried to replace the mosfet transistor, but It still doesn’t work, so there are probably more problems on the board. Is there any chance that any of you has schematics for the board? Or any experience of what components on the board are prone to failing? Any informa...