The next step is cleaning the coil, the part with thousands of thin fins where the refrigerant gas circulates. We apply a specific descaling product for air conditioning, letting it act for 15-20 minutes depending on the level of dirt. We rinse with moderate water pressure, protecting the rest of the unit with plastic to prevent water from entering where it shouldn't. The correct technique requires experience: too much pressure bends the fins and reduces performance, too little doesn't remove the dirt. The condensate tray and drain are cleaned separately with descaling product as they often have accumulated limescale. If the drain is partially blocked, we unblock it with a flexible hose. Finally, after drying all components, we apply a certified disinfectant product for air conditioning use that eliminates residual bacteria and fungi without leaving hazardous chemical residues. Call us, write to us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.

Air conditioners on the Costa Blanca accumulate dirt significantly faster than in dry inland regions. Three factors combine. Firstly, the average relative humidity in coastal areas is 70-75 percent for much of the year, keeping the coil constantly exposed to condensation. Secondly, the Saharan dust that arrives each summer leaves a thin but sticky layer that adheres to the fins and traps other contaminants. Thirdly, the sea air with suspended particles laden with salts brings extra organic material to the filter. The most concerning aspect is not the smell itself, but what it indicates. The volatile compounds produced by these growing microorganisms are respiratory irritants and, for sensitive individuals or those with allergies, can cause headaches, nasal congestion, throat irritation, and worsening asthma. Children and the elderly are particularly susceptible. What you breathe every time the air conditioning is on is the air passed through the colonised coil. This is one of the most common problems in domestic air conditioning on the Costa Blanca, and almost no one knows why it happens. When you turn on the air conditioner after winter or after several weeks of disuse, a damp, mouldy, or unpleasant organic smell emerges that lingers in the room for hours. The cause is biological. The indoor coil of the air conditioner condenses moisture every time the unit cools. This constant moisture, combined with the organic dust entering through the filters and the moderate indoor temperature when the unit is off, creates the perfect environment for colonies of bacteria and fungi to grow.

2-3 hours per standard indoor unit. For multi-splits, add 1-2 hours per extra unit. We use protective materials to avoid stains. For premium equipment from recognised brands (Mitsubishi, Daikin, LG) that are 10-12 years old, repair usually still makes sense because the overall quality justifies extending the lifespan. For basic equipment that is 7-8 years old, replacement is almost always the reasonable decision. We arrive with a complete set of instruments. Manometers for pressure, contact and infrared thermometers, electronic gas leak detector, multimeter, and clamp meter for electrical measurements. We also bring the specific diagnostic application for each brand to read error codes stored on the board.

The price for a gas refill in La Vall d'Hebron typically ranges between €126 and €1602. The final amount depends on the property's condition, materials, and working time. We always provide a fixed quote before starting. 30-day guarantee on the service. If odours return, we repeat the service at no extra cost. Both. We repair whenever the repair makes economic sense. If it exceeds 60 percent of the price of new equipment, we will tell you and you decide.