The next step is to clean the coil, the component with thousands of thin fins through which the refrigerant gas circulates. We apply a specific descaling product for air conditioning systems, letting it sit for 15-20 minutes depending on the level of dirt. We rinse with moderately pressurised water, protecting the rest of the unit with plastic sheeting to prevent water from entering unintended areas. The correct technique requires experience: too much pressure bends the fins and reduces efficiency; too little won't remove the dirt. We clean the condensate tray and drain separately with descaling product, as they often accumulate limescale. If the drain is partially blocked, we clear it with a flexible hose. Finally, after drying all components, we apply a certified disinfectant product for air conditioning use, which eliminates residual bacteria and fungi without leaving hazardous chemical residues. Yes, we use products certified for domestic air conditioning. They are non-toxic, leaving no chemical residues in the air after rinsing and drying.

The most concerning aspect isn't the smell itself, but what it indicates. The volatile compounds produced by these growing microorganisms are respiratory irritants and, in sensitive individuals or those with allergies, can cause headaches, nasal congestion, throat irritation, and worsen asthma. Children and the elderly are particularly susceptible. What you breathe every time the air conditioner is on is air that has passed through the colonised coil. After a thorough sanitisation, the noticeable effects are immediate. The unpleasant smell disappears from the very first use. The unit recovers between 10% and 25% of its original cooling capacity (as a clean coil transfers heat more effectively). Electricity consumption decreases proportionally to the recovered performance. And respiratory symptoms in sensitive individuals significantly reduce or disappear. Air conditioning units 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% for much of the year, keeping the coil constantly exposed to condensation. Secondly, Saharan dust that arrives each summer leaves a thin but sticky layer that adheres to the fins and traps other pollutants. Thirdly, the sea air, with suspended particles laden with salts, contributes extra organic matter to the filter.

2-3 hours per standard indoor unit. For multi-splits, add 1-2 hours per extra unit. We use protective materials to avoid making a mess. Mitsubishi Electric, Daikin, and LG are the three premium brands we install most often. Their inverter technology is highly mature, and they consume 40% less energy than older fixed-speed air conditioners to produce the same amount of cooling. Their outdoor noise levels are significantly lower, which is important in shared courtyards where neighbours might complain. Their filters are of better quality and last longer between cleanings. Toshiba, Panasonic, and Fujitsu are a step down in price but not significantly in quality. They are a good option for tighter budgets. More economical brands like Samsung, Hisense, or basic Hitachi models function correctly for the first four or five years, but their efficiency and durability are lower, and they tend to require more maintenance.

The price for a heat pump installation in Provençals del Poblenou typically ranges between €160 and €1440. The final amount depends on the property's condition, the materials used, and the working time involved. We always provide a fixed quote before starting. Call us, message us on WhatsApp, or request a quote online – we'll reply in under 10 minutes during business hours. Without measuring the copper piping, assessing the facade, and evaluating the electrical panel, we cannot provide an honest quote. The initial visit is free and without obligation.