Unifrost Commercial refrigeration knowledge hub for Irish businesses
FAQ

What are warning signs of defrost failure?

FAQ
Quick answer

Defrost problems often show up before the fridge fully ices up. Watch for:

Support note

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Defrost problems often show up before the fridge fully ices up. Watch for:

Temperature creep in your thermometer/HACCP records (slowly rising average temps).

Longer compressor run times and the unit struggling to pull down after door openings.

Reduced airflow inside the cabinet (weak fan blow or cold spots only near the back).

Visible ice sheets behind the evaporator cover or heavy frosting on the back wall.

Water leaks inside the cabinet or pooling underneath after “partial” defrosting.

If staff have already checked door seals, loading, and the drain, and the frosting returns quickly, a defrost component or control setting may need a technician’s diagnosis.

Read the full guide: Troubleshooting Ice Build-up in Unifrost Upright Fridges: A Guide for Irish Kitchens.

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