buildup repair

Samsung RT18M6215SG (Top Freezer) – Ice buildup in freezer Repair Guide

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How to Fix Vacuum seal door failure on Sub-Zero BI-36UFD (Built-In)

I’ve worked on quite a few Samsung RT18M6215SG units over the years, and ice buildup in the freezer is honestly one of the most common calls I get for this model. Nine times out of ten, the culprit is a failed defrost heater or a faulty defrost sensor that’s stopped signaling the heater to cycle … Read more

Whirlpool WRT318FZDW (Top Freezer) – Frost buildup in freezer Repair Guide

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How to Fix Vacuum seal door failure on Sub-Zero BI-36UFD (Built-In)

I’ve worked on dozens of Whirlpool WRT318FZDW refrigerators over the years, and frost buildup in the freezer is hands down the most common complaint I see with this model. In about 80% of cases, the defrost heater has burned out, though a failed defrost thermostat runs a close second. The good news is this is … Read more