Dirty Evaporator Coils: The Hidden Cause of Poor Cooling in Commercial Refrigeration

Dirty Evaporator Coils: The Hidden Cause of Poor Cooling in Commercial Refrigeration

If your display fridge, cool room, or freezer isn’t maintaining temperature like it used to, dirty evaporator coils might be to blame. In commercial refrigeration systems, evaporator coils are crucial for absorbing heat and keeping consistent cooling. When they become contaminated with dust, grease, or mould, performance drops fast — often without you realising it.

What Are Evaporator Coils — and Why They Matter

Evaporator coils sit inside your fridge or cool room unit and absorb heat from the air. Clean coils ensure proper airflow, stable temperatures, and efficient cooling cycles.
But in high-use environments like supermarkets, delis, or hospitality kitchens, coils can quickly accumulate debris from food particles and moisture. Once dirty, they insulate instead of cooling — making compressors overwork and driving up power bills.

How Dirty Evaporator Coils Affect Your System

When coils are dirty, your refrigeration system may experience:

  • Uneven cooling or fluctuating cabinet temperatures
  • Frost or ice build-up on coils or product
  • Extended compressor run time
  • Water leaks or condensation
  • Higher energy costs and shorter equipment lifespan

Ignoring these signs can eventually lead to complete coil failure — forcing costly replacements and downtime.

How Zeal Group Solves the Problem

At Zeal Group, we specialise in keeping commercial refrigeration systems at peak efficiency. Through our display fridge and cool room maintenance programs, we:

  • Inspect and deep-clean evaporator coils using safe, non-corrosive methods
  • Restore airflow and refrigerant efficiency
  • Test temperature probes and defrost cycles
  • Identify when cleaning isn’t enough and coil replacement is required

Our service covers all types of commercial refrigeration equipment — from open display cabinets to walk-in cool rooms and underbench fridges.

Preventative Maintenance That Pays Off

Dirty evaporator coils don’t just impact cooling — they waste energy and shorten system life. Zeal Group’s commercial refrigeration maintenance plans help detect early contamination and prevent major failures, saving you repair costs and lost stock..

Don’t Let Dirty Coils Disrupt Your Business

If you notice temperature drift, frost, or reduced airflow, it’s time for a coil inspection.
Contact Zeal Group — Melbourne’s trusted refrigeration experts — for professional evaporator coil cleaning, maintenance, and emergency repairs.
📞 Call 1300 104 210 or visit zeal-group.au for fast, reliable service.

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Reach out to Zeal Group for your refrigeration needs via call at 0451 638 059, email to info@zeal-group.com.au, or through their website’s callback form. Specify whether you require emergency repairs, maintenance, or new system installation.

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