My Samsung refrigerator has the twin cooling system. My repair guy tells me that it has independent evaporators and fans for fridge and freezer sections. The fridge recently stopped cooling down and his diagnosis was that the fan was dead. Having removed the fan how can I check if it is bad or not? Being just a simple winding I have checked the resistance across the two wires and read a value of 168 Ohms, and neither show any kind of short to the casing. Sadly I don't have a variable power supply to run it externally. The motor is a SPG IS-3208SNP6H. Thanks.
I'm not sure of the ohms but these units have a bad record of icing up on the fan. Try defrosting the entire unit manually by either unplugging it and leaving it open for 24 hours or carefully using a hair dryer on the components behind the walls like the tubing and fans. Be careful not to melt any plastic or wiring! If it runs for a day or two after doing this you have a defrost failure which can be defrost thermostat, heater or control board. The heater is easy enough to ohm out, usually either open (infinite) or very high (above 2000 ohms) or shorted ( less than 20 ohms). Most likely if it's light icing it's the defrost thermostat or control board failure. I'd hope the tech would have noticed this but try it yourself to rule it out. To check the fan, simply plug get to the harness it plugs into and check for ac voltage! Make sure to tape the door switches shut or if magnetic trick them into being closed by removing and holding them together so the fan would be running. If the voltage is present (it can vary depending what the frig is asking for) plug the fan in and see if it runs. If the no or low voltage, now you are probably looking at the power control board.
I okorder . I hope that helps.
