Sub-Zero Freezer Not Cooling in Palm Valley, FL
Unit runs but temperature stays warm — usually a compressor, condenser, or refrigerant issue. We fix this on Sub-Zero freezers across Palm Valley. Call early and a technician is usually at your door that same afternoon.

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. Nine times out of ten it comes down to failed compressor or start relay. Left unaddressed, food or stock can spoil within hours.
Most likely causes
- A stuck or failed damper control
- Worn door gaskets bleeding cold air
- Defrost fault icing over the evaporator
- Dirty or blocked condenser coils
- Refrigerant leak in the sealed system
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
Do this first — it takes two minutes: 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, the cause is almost always a failed compressor or a refrigerant leak in the sealed system, and handling refrigerant legally requires an experienced technician — which is where DIY stops.
How we fix it
First we diagnose the Sub-Zero freezer 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 Palm Valley homeowners say
on the First Coast
“Our Sub-Zero freezer quit on us and they had a technician out the same afternoon in Palm Valley. The tech explained exactly what went wrong before touching anything.”
“Called about our Sub-Zero freezer in the morning and it was running again by evening. No runaround — they told me honestly what it needed and fixed just that.”
“Called late at night and a tech was here by mid-morning to look at the Sub-Zero freezer. The diagnostic fee came off the repair total, just like they promised.”
Other Sub-Zero freezer problems we fix
Frequently asked questions
Is the repair guaranteed?
You're covered by our 1-year labour warranty and 6-month parts warranty. Should the same fault return inside that period, the follow-up visit is free.
What does a Sub-Zero freezer that is not cooling usually cost?
Most repairs for a Sub-Zero freezer that is not cooling run $150–$552 including parts and labour. The $89 diagnostic is credited in full toward the repair when you go ahead, and you get a flat quote before any work starts.
Can you come out same-day in Palm Valley?
Same-day is common in Palm Valley. Our trucks run the area every day and emergency slots are held open for breakdowns that can't wait.
Do you charge for the estimate?
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 Palm Valley.
Flat-rate pricing, 1 year labour warranty, and fast dispatch.