Sub-Zero Refrigerator Roaring Noise: Troubleshooting and Repair Guide

Is your Sub-Zero fridge roaring? Learn how to diagnose and fix the jet engine noise issue with our expert troubleshooting guide.

Frequently Asked Questions

How do I access the evaporator fan motor in my Sub-Zero model?

The evaporator fan is typically located behind a panel in the freezer compartment. You will usually need to remove screws using a 1/4-inch nut driver to access it. Refer to your model's service manual for specific instructions and diagrams.

What voltage should I expect to see at the evaporator fan motor connector?

The voltage to the evaporator fan motor varies depending on the Sub-Zero model. It's generally between 12V DC and 120V AC. Refer to the wiring diagram for your specific model for the correct voltage value.

How do I check the compressor start relay and overload?

To check the compressor start relay and overload, disconnect power, then carefully remove the relay and overload from the compressor terminals. Use a multimeter to test for continuity through the overload. Check the relay for burnt contacts or other visible damage. Replacement is often the best course of action.

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