Commercial AC repair guides

Warning signs, breakdown diagnostics and when to repair vs replace.

Key facts
  • Most breakdowns give 2–6 weeks of warning signs.
  • Repair-vs-replace tipping point: 40% of replacement cost on a >10-year system.
  • AccuTemp responds to contract breakdowns within 4 hours in the West Midlands.

Most commercial AC failures announce themselves days or weeks before shutdown: weak airflow, ice on the coil, unusual noises, spikes in energy consumption, or refrigerant top-ups appearing on service reports. Acting early keeps a £400 refrigerant repair from turning into a £4,000 compressor swap. These guides cover diagnostic patterns and repair-versus-replace economics.

Common questions about repairs

What are the warning signs my commercial AC needs repair?
Reduced cooling capacity, visible refrigerant staining, water leaks from the indoor unit, tripped breakers, or a rising kWh trend on your energy bill are the top five indicators.
Repair or replace: when does replacement make more sense?
If the system is over 10 years old and a single repair exceeds 40% of replacement cost, replace. If it's under 8 years and on Daikin/Mitsubishi kit, repair.
How quickly can AccuTemp respond to a breakdown?
Within 4 hours for contract customers in the West Midlands, next working day nationwide.

Need help applying this to your building? Talk to an AccuTemp specialist.

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