The condensate tray and drain are cleaned separately with a descaling product as they often accumulate limescale. If the drain is partially blocked, we'll clear it with a flexible hose. Finally, after drying all components, we apply a certified disinfectant product for air conditioning systems that eliminates residual bacteria and fungi without leaving hazardous chemical residues. 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. Correct technique requires experience: excessive pressure bends the fins and reduces performance, too little pressure doesn't remove the dirt. Yes, we use certified products for domestic air conditioning. They are non-toxic, leaving no chemical residues in the air after rinsing and drying.

It's 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 conditioning after winter or after several weeks of non-use, a musty, mouldy, or unpleasant organic smell emerges that lingers in the room for hours. The cause is biological. The inner coil of the air conditioner condenses moisture every time the unit cools. This persistent moisture, combined with organic dust entering through the filters and the moderate indoor temperature when the unit is off, creates the perfect environment for bacterial and fungal colonies to grow. Air conditioners on the Costa Blanca accumulate dirt significantly faster than in dry inland regions. Three factors combine. First, the average relative humidity in coastal areas is 70-75 percent for a large part of the year, keeping the coil constantly exposed to condensation. Second, Saharan dust arriving each summer leaves a thin but sticky layer that adheres to the fins and traps other contaminants. Third, sea air with suspended particles loaded with salts adds extra organic material to the filter. After a deep sanitisation, the noticeable effects appear immediately. The unpleasant smell disappears from the first use. The unit recovers between 10 and 25 percent of its original cooling performance (because the clean coil transfers heat better). Electricity consumption decreases proportionally to the recovered performance. And respiratory symptoms in sensitive individuals are clearly reduced or disappear.

2-3 hours per standard indoor unit. For multi-splits, add 1-2 hours per extra unit. We use protective materials to avoid mess. Electronic board failure due to overvoltage, humidity, or component aging. It's relatively common in areas with thunderstorms like the Vega Baja interior in August. Repair may involve replacing the entire board or, if locatable, replacing specific capacitors or resistors. It depends heavily on the model and parts availability. We arrive with a full set of instruments. Pressure gauges, contact and infrared thermometers, electronic gas leak detector, multimeter, and clamp meter for electrical measurements. We also bring brand-specific diagnostic software to read error codes stored on the board.

The price for a gas recharge in El Besòs i el Maresme typically ranges between €126 and €1602. The final amount depends on the property's condition, materials, and the time required. We always provide a fixed quote before starting. 30-day warranty on the service. If the odours return, we'll repeat the service at no extra cost. Call us, message us on WhatsApp, or request a quote online — we'll reply in under 10 minutes during business hours.