The next step is cleaning the coil, the part with thousands of thin fins through which 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. We clean the condensate tray and drain separately with descaling product as they often accumulate 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, message us on WhatsApp, or request a quote online – we reply in under 10 minutes during business hours.

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 worsening of asthma. Children and the elderly are particularly vulnerable. What you breathe every time the air conditioning is on is that air that has passed through the colonised coil. After a deep sanitisation, the noticeable effects appear immediately. The unpleasant odour disappears from the very first use. The unit recovers between 10% and 25% of its original cooling performance (as a clean coil transfers heat better). Electricity consumption decreases proportionally to the recovered performance. And respiratory symptoms in sensitive individuals are significantly reduced or disappear entirely. 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% for much of the year, keeping the coil constantly exposed to condensation. Secondly, Saharan dust arriving each summer leaves a thin but sticky layer that adheres to the fins, trapping other contaminants. Thirdly, the sea air with suspended particles loaded with salts contributes extra organic material 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 stains. Electronic boards can fail due to power surges, humidity, or component aging. This is relatively common in areas with electrical storms, such as the Vega Baja interior in August. Repair may involve replacing the entire board or, if identifiable, replacing a specific capacitor or resistor. It depends heavily on the model and parts availability. 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 equipment's lifespan. For basic equipment that is 7-8 years old, replacement is almost always the more reasonable decision.

The price for a gas recharge in El Prat de Llobregat typically ranges between €126 and €1602. The final figure depends on the property's condition, materials used, and labour time. We always provide a fixed quote before starting. 30-day warranty on the service. If the odours return, we will repeat the service at no extra cost. Older models without inverter technology start and stop abruptly at maximum power, stressing the compressor more. Modern inverter models modulate smoothly and last longer. Their electronics are more sensitive, and from the seventh or eighth year onwards, board failures start to appear requiring the entire module to be replaced. The difference between repairing it or replacing the unit depends on the cost of the part versus the price of an equivalent new unit.