samsung refrigerator RB 29H mainboard
 

l am working on a Samsung refrigerator RB29H with a colleague. on switching the the machine the inside fan will start working in a few minutes but the condenser fan at the back and the compressor will never come on. however when l press the TEST switch on the main (computer/control) board, the condenser fan will start turning but the compressor will never start. Can anyone also tell the resistance of the temperature sensors at room temp?