Innovations in Boilers and the Future of Home Heating
Boiler Installation
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Most Air Conditioning units get ignored until they stop working, and they tend to stop working in August, when you actually need them. A unit running on dirty filters or low refrigerant works harder, costs more to run, and is more likely to fail during the weeks you are relying on it most. The first warm spell is when problems surface, and often when engineers are busiest.
Getting ahead of it takes less effort than dealing with it mid-heatwave. This checklist covers the warning signs to look out for now, what a professional AC service actually includes, and the one maintenance task you can safely handle yourself. Our air conditioning servicing team covers the wider South Coast year-round.
Start here, before the temperatures do.
Most systems give clear signals before they fail. Get an engineer out before the problem develops.
If you notice any of the following:
One or two of these appearing together is a strong reason to book a service rather than wait. A fault that is easy to fix now can become a costly repair if left through the winter.
A professional service is considerably more than a visual check. A qualified engineer will work through the system in full during a maintenance visit.
A standard residential service covers:
The refrigerant side carries specific legal weight. Under UK F-Gas regulations, anyone using stationary air conditioning equipment is responsible for getting leaks checked, with frequency depending on how much refrigerant the system holds [1]. Most home split systems fall below the thresholds that trigger mandatory periodic checks. Even so, any refrigerant work, including leak detection and recharging, must be carried out by an F-Gas certified engineer.
Our engineers hold F-Gas certification and carry out all refrigerant work in line with current UK regulations. For more on which systems are best suited to homes, the air conditioning installations page covers the full picture.
Cleaning the indoor unit filters is the one maintenance task most homeowners can carry out safely. Blocked filters restrict airflow, reduce cooling output, and make the system work harder than it needs to. Switch the unit off, remove the filters carefully, rinse under warm water, and leave them to dry fully before replacing.
Beyond that, keep the area around the outdoor unit clear of leaves and debris. Refrigerant levels, electrical components, coils, and internal drainage are all tasks for a qualified engineer. If a leak is found and not repaired by a certified professional, the equipment owner is breaking UK F-Gas law regardless of system size.
For a breakdown of how often a home AC unit should be professionally serviced, our guide on AC servicing frequency covers residential and commercial intervals in detail.
Right now, the unit is probably switched off and easy to overlook. Small problems like a partially blocked filter or a marginal refrigerant level rarely announce themselves until the system is under load on a warm day. Knowing the warning signs and having a professional service in place means none of that catches you off guard.
Greenstar have been serving Dorset and the South Coast since 1990. Our F-Gas certified engineers cover Dorset, Hampshire and Wiltshire and surrounding areas with non-commissioned engineers and fixed-price quotes. 780-plus Checkatrade reviews and Which? Trusted Trader status back that up.
Call our team on 01202 355 344 or get in touch through the contact form to book your AC service.
[1] GOV.UK, Environment Agency, Checking F Gas Equipment for Leaks (2019): https://www.gov.uk/guidance/checking-f-gas-equipment-for-leaks
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