How much does an air conditioning repair cost?

Indicatively, a call-out and diagnosis is often £70 to £120, minor repairs £100 to £250, and refrigerant leak repair with recharge £250 to £600 depending on the fault.

Is it worth repairing an old unit?

If the system is over 12 to 15 years old and needs a compressor or major part, replacement is usually the better value — newer units are considerably more efficient.

Can you just top up the refrigerant?

A system that is low on refrigerant has a leak. Responsible engineers find and fix the leak rather than repeatedly recharging.

How quickly can someone attend?

Response times vary and lengthen sharply during heatwaves. Flag it clearly if the fault affects a business or a vulnerable occupant.

Repairs

Air Conditioning Repair in Leeds

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Common faults and what they usually mean

Most air conditioning faults fall into a handful of categories, and several are cheap to put right if caught early. Reduced cooling is often a dirty filter or coil rather than a failed compressor, and water dripping indoors is usually a blocked condensate drain.

Refrigerant loss is different. A system that has lost charge has a leak somewhere, and simply topping it up without finding the leak is both poor practice and, for larger systems, non-compliant with F-Gas regulations.

Describe the symptoms, any error code shown, and the make and age of the unit when you enquire — it helps engineers give a more realistic indication before attending.

Symptoms worth reporting

Blowing air but not cooling or heating
Water dripping from the indoor unit
Ice forming on pipework or the indoor coil
Outdoor unit not running or tripping the electrics
Error code flashing on the display or remote
New rattling, grinding or humming noises

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Typical repair scenarios

Blocked condensate drain

The most common call-out. Usually cleared quickly and inexpensively, but left alone it causes water damage.

Refrigerant leak

Requires leak detection, repair and recharge by an F-Gas engineer. Cost depends heavily on where the leak is.

Failed capacitor or fan motor

A frequent cause of an outdoor unit that hums but won't start. Parts are usually modest in cost.

PCB or control faults

Error codes often point at the control board. Part availability varies with the unit's age.

Compressor failure

The most expensive outcome. On an older system, replacement is often more economic than repair.

Electrical supply issues

Tripping breakers can be the system or the circuit — a proper diagnosis avoids replacing the wrong thing.

Frequently asked questions

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