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

Whirlpool WRT318FZDW (Top Freezer) – Water leaking inside Repair Guide

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

I’ve worked on dozens of Whirlpool top-freezer units like the WRT318FZDW, and internal water leaking is honestly one of the most common calls I get. Nine times out of ten, it comes down to a clogged or frozen defrost drain tube causing meltwater to pool inside the fresh food compartment instead of draining properly. The … Read more

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

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

GE GTE18GTHWW (Top Freezer) – Temperature control thermostat Repair Guide

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

I’ve worked on dozens of GE GTE18GTHWW refrigerators over the years, and a failing temperature control thermostat is one of the most common calls I get for this model. It’s classic — the freezer stays cold but the fresh food compartment climbs into the 50s. The good news is this is a straightforward fix most … Read more

Whirlpool WRT318FZDW (Top Freezer) – Not cooling in fresh food section Repair Guide

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

I’ve worked on quite a few Whirlpool WRT318FZDW units over the years, and a warm fresh food section is one of the most common calls I get on this model. Nine times out of ten, it comes down to a failed damper control assembly or a cold control thermostat that’s lost its calibration. The good … 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

GE GTE18GTHWW (Top Freezer) – Defrost system failure Repair Guide

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

I’ve worked on dozens of GE GTE18GTHWW refrigerators over the years, and defrost system failure is honestly one of the most common calls I get for this model. You’ll typically notice ice buildup on the evaporator coils and warm temps in the fresh food section. In most cases, a failed defrost heater or defrost thermostat … Read more

Bosch B36CL80ENS (French Door) – Water filter housing leak Repair Guide

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

I’ve worked on quite a few Bosch French door refrigerators over the years, and the B36CL80ENS water filter housing leak is something I see fairly regularly — especially in units that are 3–5 years old. Nine times out of ten, the culprit is a cracked filter head assembly or worn O-rings, and swapping out the … Read more

Bosch B36CL80ENS (French Door) – Temperature fluctuations Repair Guide

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

I’ve worked on the Bosch B36CL80ENS quite a few times, and temperature fluctuations are honestly one of the most common calls I get for this French door model. Nine times out of ten, it comes down to a failing thermistor or a compromised door gasket letting warm air sneak in. Once you identify which one … Read more

Bosch B36CL80ENS (French Door) – Ice maker production slow Repair Guide

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

I’ve worked on the Bosch B36CL80ENS quite a bit over the years, and slow ice production is honestly one of the most frequent calls I get on this French door model. Nine times out of ten, it comes down to a clogged water filter, incorrect freezer temperature, or low water line pressure — all straightforward … Read more