Leak detection and repair, parts replacement, or gas recharge based on diagnosis. 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 brand-specific diagnostic software to read error codes stored in the control board. Diagnosis begins with a brief interview with the client about when the problem started, how it manifests, and if anything extraordinary happened beforehand (storm, unit relocation, impact). It continues with a visual inspection for oil stains indicating leaks, visible mechanical damage, or accumulated dirt. Then, electrical measurements and refrigerant system 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 significant.

Fault localisation using certified instruments before proposing a repair. When an air conditioner stops cooling effectively, there can be several causes that appear similar at first glance. The difference lies in the speed and nature of the failure. If the unit has gradually lost efficiency over months, it's most likely a slow gas leak that has progressively reduced the available charge, leading to poor performance. If the unit cooled normally and suddenly stopped producing cold overnight, it's usually a significant leak, compressor failure, or an electronic board issue. If it starts but stops after a few minutes with an error message on the remote, it could be the thermostat, temperature sensor, or a communication problem between units. Gas leak at the outdoor unit connection, especially in units over 5 years old. Salt spray and thermal expansion/contraction cycles weaken the connections. A small leak gradually reduces the charge, and the unit cools worse each season. The repair involves detection with a professional gas detector, replacing the fitting or re-soldering the copper pipe, vacuuming, and recharging.

Failed electronic board due to power surges, moisture, or component aging. This is relatively common in areas with electrical storms, such as inland Vega Baja in August. Repair might 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 units from recognised brands (Mitsubishi, Daikin, LG) that are 10-12 years old, repair is often still worthwhile because their overall quality justifies extending their lifespan. For basic units that are 7-8 years old, replacement is almost always the more sensible decision. Mitsubishi, Daikin, LG, Toshiba, Samsung, Panasonic, Fujitsu, Hitachi, Hisense, and others. For official warranty, we refer you to the brand's authorised service.

The cost for gas charging in Premià de Mar typically ranges from €126 to €1602. The final price depends on the property's condition, materials, and labour time. We always provide a fixed quote before starting. Older models without inverter technology 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 requiring the entire module to be replaced begin to appear. The decision between repairing it or replacing the unit depends on the cost of the part versus the price of a new equivalent unit. Burned-out compressor in economy 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 for premium equipment with a reasonable remaining lifespan. For basic units, we usually recommend replacement.