Sub-Zero Freezer Not Freezing in Fleming Island, FL
Freezer compartment stays above 0°F. Common causes: defrost thermostat, evaporator fan, sealed-system leak. We fix this on Sub-Zero freezers across Fleming Island. Weekend and evening slots are available when a weekday won't do.

Why your Sub-Zero freezer is not freezing
On a Sub-Zero freezer, not freezing usually announces itself like this: freezer compartment stays above 0°F. Common causes: defrost thermostat, evaporator fan, sealed-system leak. The usual culprit is defrost thermostat or heater failure. Left unaddressed, food or stock can spoil within hours.
Most likely causes
- A weak or failing compressor
- Evaporator fan not running
- A clogged defrost drain
- Failed temperature sensor
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
Before you call anyone, listen for the evaporator fan running when the door's closed, since a silent fan is a common first sign. When that isn't the fix, it's usually a defrost heater, sensor, or sealed-system fault, and diagnosing those needs a multimeter and refrigeration training, not guesswork.
How we fix it
An experienced tech tests the Sub-Zero freezer systematically and pinpoints what's actually causing the not freezing. Genuine Sub-Zero OEM parts are available through authorized distributors, and sealed-system refrigerant work must be performed by an experienced technician. The quote is flat, approved before we start, and every repair carries our warranty.
Independent service experienced with Sub-Zero; factory-certified service is recommended for these luxury units, especially sealed-system refrigeration.
What Fleming Island homeowners say
on the First Coast
“The Sub-Zero freezer broke right before the weekend and they still came out same-day. Fair price, no surprise fees, and the Sub-Zero freezer has worked perfectly since.”
“Two other shops couldn't fit us in — these guys fixed the Sub-Zero freezer the same day. The diagnostic fee came off the repair total, just like they promised.”
“Called late at night and a tech was here by mid-morning to look at the Sub-Zero freezer. No runaround — they told me honestly what it needed and fixed just that.”
Other Sub-Zero freezer problems we fix
Frequently asked questions
What does the call-out cost?
A flat $89 covers the on-site diagnosis and rolls into the repair price. What we quote is what you pay — no add-ons.
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.
What does a Sub-Zero freezer that is not freezing usually cost?
Typical costs for a Sub-Zero freezer that is not freezing 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.
Do you offer same-day service in Fleming Island?
Yes. We cover Fleming Island daily and offer same-day and emergency service. Booking earlier in the day gives the best chance of an afternoon slot.
Get same-day service in Fleming Island.
Flat-rate pricing, 1 year labour warranty, and fast dispatch.