Whirlpool Freezer Not Freezing — Fix Guide

What Does This Error Mean?

A Whirlpool freezer that is not freezing is most often caused by a failed defrost heater allowing ice to build up on the evaporator coils. This blocks airflow and the freezer gradually warms up over several weeks.

How to Fix It

Confirm the temperature setting is correct (-18 degrees C). Also ensure the fridge is not in Sabbath or Showroom mode, which disables the cooling system.
Remove items from the freezer and press gently on the rear interior panel. A hard, icy feel indicates that the evaporator coils behind the panel are frozen solid.
Unplug the unit and leave both doors open for 24-48 hours to manually defrost. Place towels on the floor to absorb meltwater.
After defrosting, remove the rear freezer panel (typically held by 4-6 screws). Test the defrost heater, thermal fuse (bi-metal), and defrost thermostat for continuity. Replace any failed component.
If the evaporator is clear of ice but the freezer still does not reach -18 degrees C, test the evaporator fan and start relay. Replace whichever component fails.

Frequently Asked Questions

Whirlpool freezer runs all the time but will not freeze — what is wrong?

A freezer that runs continuously but cannot reach temperature usually has a refrigerant leak, a seized compressor, or heavily restricted airflow. The compressor running without cooling is a sign of a sealed system fault — call a technician.

How do I know if my Whirlpool defrost heater has failed?

Remove the evaporator cover and test the heater with a multimeter set to continuity. No continuity (open circuit) confirms the heater has burned out and needs replacement.

Is a Whirlpool freezer-not-freezing repair worth it?

If the fault is a defrost heater or thermal fuse (usually under £30 for parts), repair is very worthwhile. If it is a compressor or refrigerant issue on a machine over 10 years old, replacement may be more economical.