We arrive with a complete set of instruments. Manometers for pressures, contact and infrared thermometers, electronic gas leak detector, multimeter, and clamp meter for electrical measurements. We also carry the specific diagnostic software for each brand to read error codes stored in the circuit board. Professional diagnosis when the air isn't cooling as it used to. Gas leaks, compressor, electronics, and sensors. Repair or replacement as appropriate. Leak detection and repair, parts replacement, or gas recharge based on diagnosis.

The diagnosis begins with a brief interview with the client about when the problem started, how it manifests, if anything unusual happened beforehand (storm, unit moved, impact). It continues with a visual inspection for oil stains indicating leaks, visible mechanical damage, and accumulated dirt. Then electrical measurements and refrigerant analysis with manometers. Once the cause is identified, a fixed quote for the repair is provided, compared against the cost of a new unit if the fault is major. Gas leak at the outdoor unit connection, especially in units over 5 years old. Salt spray and summer-winter thermal cycles loosen the connections. A small leak progressively reduces the charge, and the unit cools worse each season. Repair involves detection with a professional gas detector, replacing the connection or re-soldering the copper, vacuuming, and recharging. Worn-out compressor in budget-range units with 6-9 years of intensive use. This is the most expensive fault. Replacing the compressor costs a significant portion of a new unit's price and is only worthwhile on premium units with reasonable remaining lifespan. For basic units, we usually recommend replacement.

Electronic board failure due to power surges, humidity, or component aging. It's relatively common in areas with thunderstorms like the interior of Vega Baja in August. Repair may involve replacing the entire board or, if the specific component can be identified, replacing a capacitor or resistor. It depends heavily on the model and parts availability. Mitsubishi, Daikin, LG, Toshiba, Samsung, Panasonic, Fujitsu, Hitachi, Hisense, and others. For official warranty, we refer customers to the brand's authorised service centre. Common components (remote controls, capacitors, sensors) yes. Electronic boards and compressors are ordered and arrive in 2-7 days depending on the brand and model.

The price for a gas top-up in Sant Celoni typically ranges from €126 to €1602 as a guide. The final figure depends on the property's condition, materials, and labour time, and we always finalise it after seeing photos or — if you prefer — after an inspection visit, with no obligation. As a general rule, if the repair cost exceeds 60% of the cost of an equivalent new unit, it's not cost-effective. The reason is that repairing an expensive component leaves the rest of the unit at its actual age. Other components will start to fail soon. Replacing the compressor of a nine-year-old unit for a considerable amount, knowing that the electronics and fans are also ageing, is generally a poor investment. Older non-inverter models start and stop abruptly at full power, which puts more stress on the compressor. 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 occur requiring the entire module to be replaced. The decision between repairing it or changing the unit depends on the cost of the part versus the price of an equivalent new unit.