Leak detection and repair, parts replacement, or gas recharge based on diagnosis. 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 bring the specific diagnostic application for each brand to read error codes stored on the board. 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's followed by a visual inspection for oil stains indicating leaks, visible mechanical damage, or accumulated dirt. Then, electrical measurements and refrigerant analysis with manometers. Once the cause is identified, a fixed repair quote is provided, compared against the cost of a new unit if the fault is major.

Fault location using certified instruments before proposing a repair. When an air conditioner stops cooling as it used to, there can be several causes that initially seem identical. 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 amount in the system, causing it to malfunction. If the unit was cooling normally and suddenly stopped providing cold overnight, it's usually a large leak, compressor failure, or 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's connection (raccord), especially in units over 5 years old. Salt spray and thermal expansion/contraction from summer/winter can loosen fittings. A small leak gradually reduces the charge, and the unit cools worse each season. The repair involves detection with a professional gas detector, replacement of the fitting or re-soldering the copper, vacuuming, and a new charge.

Failed electronic board due to power surges, moisture, or component aging. This is relatively common in areas with electrical storms, like the interior of Vega Baja in August. The repair may involve replacing the entire board or, if identifiable, replacing a specific capacitor or resistor. It greatly depends 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 the overall quality justifies extending their lifespan. For basic units that are 7-8 years old, replacement is almost always the 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 price for gas recharging in Terrassa typically ranges between €126 and €1602. The final amount depends on the property's condition, materials, and working time. We always provide a fixed quote before starting. Older models without inverter technology start and stop abruptly at full power, which stresses 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 occur, 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 a new equivalent unit. 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 for premium units with a reasonable residual lifespan. For basic units, we usually recommend replacement.