(888) 555-0123 — Portland's Refrigerator Repair Specialists
Freezer Repair

Freezer Running but Not Freezing? Common Causes

A freezer that's clearly running — you can hear it — but not keeping food frozen points to one of a handful of specific problems.

Frost buildup blocking airflow

A heavy layer of frost on the evaporator coils blocks the cold air from circulating properly, which can leave a freezer running constantly while still losing its temperature.

A failing defrost system

Ironically, a broken defrost heater or timer can cause the exact frost buildup above — the system is supposed to periodically melt a thin layer of ice, and when that fails, ice accumulates until it blocks airflow entirely.

A door seal that isn't sealing

Warm air constantly leaking in around a worn gasket forces the compressor to run non-stop just to keep up, often without ever reaching the set temperature.

Low refrigerant from a slow leak

If the compressor runs but the refrigerant charge has dropped due to a leak, the system can't move enough heat out of the freezer no matter how long it runs. This requires an EPA-certified technician to diagnose and repair safely.

Why "running" doesn't mean "working"

A freezer motor running constantly is often a sign something else is failing, not a sign everything's fine. Related reading: compressor repair vs. replacement for cases where the compressor itself is the underlying cause.

Quick Answers

FAQs

Should I keep the freezer running while waiting for repair?
It's usually fine to leave it running, but move food you can't afford to lose to another freezer or a cooler with ice in the meantime, since it may not be holding a safe temperature.
Can I just defrost it manually myself?
A manual defrost can offer temporary relief for frost buildup, but if the defrost system itself is broken, the ice will come back until the underlying part is repaired.

Get your freezer diagnosed

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(888) 555-0123