Sub-Zero Refrigerator Not Cooling in Jacksonville, FL
Unit runs but temperature stays warm — usually a compressor, condenser, or refrigerant issue. We fix this on Sub-Zero refrigerators across Jacksonville. Our trucks run this area every day, so next-day is the norm and same-day is common.

Why your Sub-Zero refrigerator is not cooling
On a Sub-Zero refrigerator, not cooling usually announces itself like this: unit runs but temperature stays warm — usually a compressor, condenser, or refrigerant issue. The usual culprit is failed compressor or start relay. Left unaddressed, food or stock can spoil within hours.
Most likely causes
- A stuck or failed damper control
- A bad evaporator fan motor
- Worn door gaskets bleeding cold air
- Faulty temperature control board
- Defrost fault icing over the evaporator
Known Sub-Zero refrigerator weak points
- Dual compressor / sealed-system failures
- Evaporator coil frost blocking airflow
- Intermittent ice maker failures
- Control panel/board faults
Quick check — and when it's not DIY
Do this first — it takes two minutes: confirm the refrigerator has power, the thermostat is actually set cold, and the condenser coils or vents aren't blocked by dust or stored items. Also, listen for the compressor running at all, and make sure nothing is blocking airflow around the back or bottom vents. Once you've ruled that out, not-cooling that keeps recurring after the coils are clean usually means the sealed system has lost its charge, and recharging it needs recovery equipment and an experienced technician.
How we fix it
First we diagnose the Sub-Zero refrigerator end to end, so you're not paying to swap parts on a guess. Genuine Sub-Zero OEM parts are available through authorized distributors, and sealed-system refrigerant work must be performed by an experienced technician. Most not cooling jobs finish same-day, at a flat price, under our warranty.
Independent service experienced with Sub-Zero; factory-certified service is recommended for these luxury units, especially sealed-system refrigeration.
What Jacksonville homeowners say
on the First Coast
“No waiting around — the Sub-Zero refrigerator was diagnosed within an hour of the tech arriving. Clean, on-time, and they took the old part with them. Would call again.”
“They squeezed our Sub-Zero refrigerator in on a busy day and still showed up inside the window. They clearly knew Sub-Zero inside out and had the part on the truck.”
“Same-day response — a tech was diagnosing the Sub-Zero refrigerator hours after I called. Flat price agreed up front, and they stood behind the labour warranty.”
Other Sub-Zero refrigerator problems we fix
Frequently asked questions
What does a Sub-Zero refrigerator that is not cooling usually cost?
Typical costs for a Sub-Zero refrigerator that is not cooling land between $150–$552, parts and labour included. The $89 call-out is applied to the job and the quote is flat — no meter running.
Is there a fee for the diagnostic?
The $89 diagnostic covers a full on-site inspection and is applied to your repair total. There are no hidden trip charges or surcharges on top of your quote.
Is the repair guaranteed?
We stand behind the work with a 1-year labour warranty and 6-month parts warranty — if it recurs in that time, we fix it again for free.
Do you offer same-day service in Jacksonville?
We do — Jacksonville is on our daily route, with same-day and after-hours emergency slots. The earlier you call, the better the odds of a same-day visit.
Get same-day service in Jacksonville.
Flat-rate pricing, 1 year labour warranty, and fast dispatch.