Sub Zero refrigerators in most cases are a dual evaporator and compressor refrigerator. This means if one side can be cooling fine while the other is warming up. When a refrigerators condenser fan motor fails it can create a no cool situation in both the freezer and the refrigerator side.
To diagnose the refrigerator and verify that the fan motor has failed requires little to no effort. On Sub Zero Refrigerators that have a grill on top remove the grill, if the grill is on bottom remove it as well. The grill on top will have three screws coming in from the bottom possibly as well as one or two spring claps holding it from the inside. If your Sub Zero has a grill on the bottom, removing the four screws in each corner will release the grill.
Now the the grill is off in either location look inside behind the grill, the fan motor will be in the middle, if the compressor is running and the fan isn’t it’s bad. To verify this, remove the two wires that connect to the fan motor, with a volt meter verify that 110v is present, if so replace the fan motor.
Most often a refrigerators condenser fan motor fails or stalls, it’s not unheard of for the main control to cause this issue, the volt meter check may be beneficial to you in the long run. On certain appliance parts if the part has been installed the appliance parts house will not return the appliance part. On our site we have provided a link to the cheapest appliance parts online. If you require further clarification, you can post your repair related question in our forum, below I have attached a link to our DIY Appliance repair help forum.
Sub Zero And Wolf products we know well, if you have a Sub Zero or Wolf appliance repair question one of our experts can gladly help you repair it with a trip from a service technician. We repair high end appliance every day, if it’s one thing we know it’s how to fix high end appliances. Sub Zero and Wolf are just a few Viking Dacor Thermador DCS Fisher Paykel. We know our stuff come test us out.