Sub-Zero Freezer Not Cooling in Jacksonville, FL
Unit runs but temperature stays warm — usually a compressor, condenser, or refrigerant issue. We fix this on Sub-Zero freezers across Jacksonville. You get a two-hour arrival window, not a vague 'sometime today'.

Why your Sub-Zero freezer is not cooling
Catching not cooling early on a Sub-Zero freezer is usually straightforward: unit runs but temperature stays warm — usually a compressor, condenser, or refrigerant issue. The usual culprit is refrigerant leak in the sealed system. Left unaddressed, food or stock can spoil within hours.
Most likely causes
- Refrigerant leak in the sealed system
- Defrost fault icing over the evaporator
- A stuck or failed damper control
Known Sub-Zero freezer 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
There's one thing worth checking before you book anyone: listen for the compressor running at all, and make sure nothing is blocking airflow around the back or bottom vents. Also, confirm the freezer has power, the thermostat is actually set cold, and the condenser coils or vents aren't blocked by dust or stored items. If none of that changes anything, 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
Our technician runs a full diagnostic on your Sub-Zero freezer and isolates the exact cause before quoting. 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
“The Sub-Zero freezer broke right before the weekend and they still came out same-day. Fixed on the first visit — the flat price matched the quote exactly, no upsell.”
“Two other shops couldn't fit us in — these guys fixed the Sub-Zero freezer the same day. Stood behind the warranty and used a real Sub-Zero OEM part, not a knockoff.”
“They squeezed our Sub-Zero freezer in on a busy day and still showed up inside the window. You can tell they work on Sub-Zero all the time — quick, clean diagnosis.”
Other Sub-Zero freezer problems we fix
Frequently asked questions
Can you come out same-day in Jacksonville?
Same-day is common in Jacksonville. Our trucks run the area every day and emergency slots are held open for breakdowns that can't wait.
What if the same problem comes back?
Every repair is backed by a 1-year labour warranty and a 6-month parts warranty. If the same issue returns in that window, we come back at no charge.
What does a Sub-Zero freezer that is not cooling usually cost?
Typical costs for a Sub-Zero freezer 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.
Get same-day service in Jacksonville.
Flat-rate pricing, 1 year labour warranty, and fast dispatch.