Samsung RT18M6215SG (Top Freezer) – Compressor relay failure Repair Guide

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 compressor relay failure is honestly one of the most common calls I get on this model. The good news is it’s usually a straightforward fix — about 80% of the time, swapping out the start relay gets the compressor running again without … Read more

Frigidaire FFTR1821TS (Top Freezer) – Compressor running constantly Repair Guide

How to Fix Alarm codes on Sub-Zero BI-36UFD (Built-In)

I’ve worked on dozens of Frigidaire FFTR1821TS units over the years, and a constantly running compressor is honestly one of the most common calls I get for this model. Nine times out of ten, the culprit is either clogged condenser coils or a failing door gasket letting warm air sneak in. A good cleaning and … Read more

GE GTE18GTHWW (Top Freezer) – Compressor won’t start Repair Guide

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

I’ve worked on dozens of GE GTE18GTHWW units over the years, and a compressor that won’t start is honestly one of the most common calls I get for this model. Nine times out of ten, the culprit is a failed start relay — a cheap, easy fix that homeowners can absolutely handle themselves with a … Read more

LG LRMVS3006S (French Door) – Compressor failure Repair Guide

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

I’ve worked on the LG LRMVS3006S quite a few times, and compressor failure is unfortunately one of the more common calls I get on this French door model. LG’s Linear Compressor design, while efficient, has a known failure pattern that shows up around the 5-7 year mark. The fix almost always means a full compressor … Read more

Maytag MFI2570FEZ (French Door) – Compressor not running Repair Guide

How to Fix Alarm codes on Sub-Zero BI-36UFD (Built-In)

I’ve worked on quite a few Maytag MFI2570FEZ French door refrigerators over the years, and a compressor that won’t run is one of the most common service calls I get on this model. Nine times out of ten, the culprit isn’t the compressor itself — it’s the start relay or overload protector that’s failed, which … Read more

LG LFXS26973S (French Door) – Linear compressor failure Repair Guide

How to Fix Alarm codes on Sub-Zero BI-36UFD (Built-In)

I’ve worked on dozens of LG LFXS26973S units over the years, and linear compressor failure is by far the most common call I get on this model. The good news is LG’s 10-year sealed system warranty often covers the compressor itself — so before you spend a dime, verify your purchase date. Most of the … Read more