🧊 "My Sub-Zero Fridge Stopped Cooling!" – What We Found (and Fixed) in Tarpon Springs

Professional Appliance Repair
Jul 16
3 min read

Sub-Zero refrigerators are the gold standard. Quiet. Powerful. Built to last.

But when a loyal customer in Tarpon Springs called us in a panic—“My fridge is warm but the freezer’s still cold”—we knew it was time to dive deep into a premium system gone quiet.

Let’s walk you through what happened, how we fixed it, and why it’s a common (but preventable) issue with high-end refrigerators.

🚨 The Problem Why My Sub-Zero Fridge Stopped Cooling: Warm Fridge, Cold Freezer

Lauren had owned her Sub-Zero 690 for over 15 years with zero problems—until one day, the top fridge started getting warm. Milk was spoiling. Lettuce wilted overnight. Meanwhile, the freezer was still working fine.

Sub-Zero refrigerator not cooling — Sub-Zero repair Tarpon Springs

“We didn’t hear the usual fan sound anymore. And the fridge temperature just kept climbing. We were afraid the whole unit was failing.”

Sub-Zeros rarely fail all at once. This kind of uneven cooling pointed to a very specific issue.

🔍 What We Found

We hear you as My Sub-Zero Fridge Stopped Cooling!, Our tech arrived same-day. After removing the interior panels and doing a full system check, here’s what we uncovered:

The evaporator fan motor in the fridge section had stopped spinning
Ice had built up inside the air duct, blocking cold air from circulating
The thermistor (temperature sensor) was reading erratically
The condenser coils were packed with dust and overdue for cleaning

The good news? The sealed system (compressor, refrigerant lines) was perfectly fine. This was a mechanical + airflow issue—fixable, fast.

🛠️ The Fix

We replaced the failed fan motor with an OEM Sub-Zero part, installed a new thermistor, and used steam to defrost the clogged air ducts. While inside, we also cleaned the condenser coils to help the system breathe and improve energy efficiency.

💡 Bonus: We recalibrated the door hinges and checked gasket seals to ensure proper airflow, preventing future frost buildup.

Within hours, the fridge dropped from 61°F to a perfect 37°F.

👏 The Result

“You saved us thousands. We were about to start shopping for a new fridge, and now it’s working better than ever. I’m beyond impressed.”— Lauren W., Tarpon Springs

💡 What Causes Sub-Zero Cooling Issues Like This?

Even elite appliances like Sub-Zero have moving parts that wear out over time. Common issues we see:

Symptom	Likely Cause	Our Fix
Fridge warm, freezer cold	Fan motor or airflow blockage	Replace fan, defrost ducts
Loud humming or clicking	Motor strain or failing relay	Replace relay/board
Ice near vents or panels	Airflow imbalance	Clear ducts, check sensors
Temps keep fluctuating	Bad thermistor	Replace + recalibrate
No cooling at all	Compressor or sealed system issue	Full diagnostic & repair

🧰 Why Customers Trust Us with Sub-Zero Repairs

Sub-Zero repairs aren’t basic appliance work—they require real knowledge, OEM parts, and the confidence to diagnose complex systems. We bring all of that, plus: