How often should the filters be cleaned?

With active use, every 2-4 weeks. In a holiday apartment, always at the start of the season and after prolonged running.

What does professional maintenance include?

Cleaning of filters and heat exchangers, checks of refrigerant, drainage and electrical connections, a test of all modes and disinfection of the indoor unit if needed.

Is maintenance needed if the AC is almost new?

By the sea, yes. Salt and humidity attack the outdoor unit regardless of the unit’s age, and clean filters protect the warranty and keep the electricity bill low.

Getting your air conditioner ready for summer: a checklist for seaside property owners

Before the first heatwave, the air conditioner in your apartment in Nessebar, Sunny Beach, Ravda or Sveti Vlas needs a few simple but important steps. Here is the full checklist - what to do yourself and when to call a technician.

Why preparation matters by the sea

After winter, the outdoor unit has collected salt, sand and dust, and the indoor unit humidity and dusty filters. Switching the AC on blindly in June means weaker cooling, bad smells, a higher electricity bill and a risk of breakdown in the busiest month for service companies.

What you can do yourself

Clean the filters of the indoor unit with lukewarm water and dry them.
Inspect the outdoor unit - make sure it is not blocked by leaves, sand or nests.
Run the unit in cooling mode for 15-20 minutes and check that it blows cold, that no water drips from the indoor unit and that there is no unusual noise.
Check the remote batteries and the timer settings.

When you need a technician

The unit blows air but does not cool or cools weakly - likely refrigerant or a dirty heat exchanger.
Water leaks from the indoor unit - blocked drain.
Bad smell on start-up - deep cleaning and disinfection needed.
The outdoor unit is noisy or vibrating - worn bearings or loose mountings.
No maintenance for over a year - a full service is recommended.

Tip: book maintenance in April-May. In June and July the schedules of coastal service companies fill up quickly.

If you are not in Bulgaria

All of the preparation can be done without your presence - with a key left with a neighbour or the building manager, plus a photo report. See how remote servicing works.

Frequently asked questions

How often should the filters be cleaned?: With active use - every 2-4 weeks. In a holiday property - always at the start of the season and after long periods of operation.
What does professional maintenance include?: Cleaning of filters and heat exchangers, checks of refrigerant, drainage and electrical connections, testing of all modes and, if needed, disinfection of the indoor unit.
Do I need maintenance if the unit is almost new?: By the sea - yes. Salt and humidity attack the outdoor unit regardless of its age, and clean filters protect both the warranty and your electricity bill.