Air conditioning services in Novi Sad

Service

Air conditioner installation

I install inverter and standard split air conditioners of every brand — in flats, houses, offices and shops. Before anything gets drilled we pick the position of both units together, because that decides how well it will cool and how much you will hear it. I take into account the furniture layout, the airflow direction, where the power comes from and how far the condensate has to drain.

The line is run in insulated copper, inside conduit or trunking, and the system is always vacuumed with a proper vacuum pump before it is opened up. That is the step cheap installers skip, and it is exactly the one that pulls moisture and air out of the system — the difference between a compressor lasting ten years and lasting two.

If the outdoor unit goes high up on a facade or above a street, I come with a cherry picker. No balancing on ladders, no risk to you or to people walking past.

What is included

• Call-out, advice on choosing and positioning the unit
• Wall drilling — brick, block or reinforced concrete
• Outdoor brackets into load-bearing wall, with anti-vibration pads
• Insulated copper line, electrics and condensate drain
• System vacuuming and leak check on every joint
• Commissioning, temperature measurement and handover with warranty

Service

Repair and diagnostics

Stopped cooling, water dripping out of the indoor unit, a rattle or whistle, an error code on the display, or the unit switching itself on and off — those are the faults I see almost daily. I diagnose on site: pressures, inlet and outlet temperatures, electronics, capacitor, fans and airflow all get checked.

Only once I know the cause do I tell you what needs doing and what it costs. And if the repair does not make sense against the price of a new unit, I will say so plainly — there is no point pouring money into a fifteen-year-old machine that will fail again next month.

Faults I deal with most

• Not cooling, or cooling weakly
• Water dripping from the indoor unit — blocked tray or drain
• Ice forming on the copper lines and evaporator
• Noise, vibration or whistling
• Will not start, shuts itself off, or flashes an error code
• Replacement of capacitors, fans, sensors and control boards

Service

Cleaning and disinfection

This is the service that pays for itself fastest and gets skipped most often. An enormous volume of air passes through the unit over a season, and it carries dust, pollen and hair with it. All of that settles on the filters and on the evaporator fins, where the condensate moisture turns it into an ideal home for bacteria and mould. That is where the stale smell comes from when you switch the unit on after winter.

A service clean is not the same as rinsing the filters under the tap. I take the front cover off the indoor unit, wash the evaporator and the blower wheel with a dedicated cleaner, clear the tray and blow the condensate drain through, and wash the dust and pollen build-up off the outdoor unit. Disinfection at the end removes the smell and the microbes rather than just masking them.

A clean unit cools harder, runs quieter and uses noticeably less electricity, because the compressor no longer has to run twice as long to reach the same temperature.

What a service clean covers

• Washing and drying the filters
• Deep clean of the evaporator and blower wheel
• Clearing the tray and flushing the condensate drain
• Washing the outdoor condenser coil
• Disinfection against bacteria, mould and odour
• Operation check and outlet temperature measurement

Service

Refrigerant refill and replacement

First things first: an air conditioner does not consume refrigerant. It is a sealed system, so if it is short of gas, it is leaking somewhere. That is why I do not do a "top-up only" without checking — it is money thrown away, because in a month or two you are back in the same place, with the same fault and another bottle on the bill.

The procedure is always the same: find the leak with a detector or with bubble solution, repair the joint or replace a section of pipe, vacuum the system, and only then charge it with the exact weight given on the unit's data plate. Finally I measure pressure, superheat and outlet temperature to confirm it is running as it should.

I work with every refrigerant you meet in the field — R32 on newer inverter units, R410A on the previous generation and R22 on older machines, along with honest advice on whether an old unit is worth recharging at all.

Signs of a refrigerant leak

• Runs constantly but the room never cools down
• Ice or frost on the copper lines at the outdoor unit
• Air from the outlet is lukewarm instead of cold
• Electricity bill up without any change in habits
• Unit reports a pressure error

Service

Removal and relocation

You are moving, redoing the facade or renovating, and the air conditioner needs to come with you. Removal looks simple, but done carelessly the refrigerant vents to atmosphere and a full bottle is waiting for you at the new address — often more expensive than the relocation itself.

So it is done in order: the refrigerant is pumped down into the outdoor unit by closing the valves under gauge control, and only then are the lines disconnected and the unit taken off the wall. At the new address it is a fresh installation with a fresh vacuum and leak check. If the old lines are too long, too short or no longer sound, they get replaced or extended.

What I do

• Pumping the refrigerant down into the outdoor unit properly
• Removing indoor and outdoor units and the brackets
• Packing the equipment for transport
• Reinstallation at the new address
• New copper line if the old one is not reusable
• Vacuum, commissioning and test run