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During the repair process, some repairmen may have malicious intentions and may request the homeowner to provide certain items to facilitate the repair, replacement, or inspection of air conditioners in order to divert attention. Therefore, do not be careless with air conditioner repairmen who may take advantage of your absence to pretend to have completed repairs when they have not actually done so.
Repairmen often use other breakdown reasons or deliberately cause malfunctions to earn extra money.
If only maintenance and cleaning of air conditioners are performed, repairmen will not be able to profit. Therefore, they need to justify other breakdown reasons such as: cracked copper gas lines, poor quality copper lines requiring replacement, leaking gas valves, or faulty circuit boards and capacitors... To prevent this, you need to understand air conditioners, verify the accuracy of the issues they present, and carefully consider before allowing repairmen to replace any components.
Air conditioner repairmen may also deceive about the length of copper wires, conduit pipes to benefit themselves during the installation process. This is especially common when replacing copper wires and conduit pipes. Additionally, buying at low prices but quoting high prices during installation to profit from the price difference is another tactic used by repairmen. To avoid being deceived, you must double-check measurements or compare prices before replacing any parts!
Additionally, repairmen often cite reasons such as not having the necessary tools or having replacement parts at home and preferring to take the machine home for repairs. However, with this tactic, the likelihood of repairmen having malicious intentions and altering machine components is very high, so people must carefully consider before allowing them to take the machine home.
Insufficient gas pumping is also a common scenario. The gas in air conditioners will either remain or be completely depleted, not gradually decreasing as many repairmen explain. When the gas is depleted, repairmen need to locate and address the leak source, then refill the gas. Therefore, you need to check during gas pumping, especially because air conditioner repairmen often use sloppy welding techniques after gas refilling, leading to gas leaks in a short time. Consequently, the machine falls into poor operational conditions because the gas has leaked out through the holes.
Insufficient gas pumping is a common and widely used trick by repairmen.
Routine maintenance and cleaning methods for air conditioners
Air conditioners also need maintenance after prolonged operation to ensure optimal performance. Therefore, before each peak usage season, you should undergo maintenance to ensure operational efficiency and avoid energy wastage during usage. The demand for air conditioners in the summer particularly increases, so the best time for maintenance is in March-April. If you miss this opportunity, maintenance services may not be satisfactory, and prices for technicians and accessories will rise.
Regularly cleaning your air conditioner helps save electricity and increases durability.
The air conditioner maintenance process involves cleaning tasks such as: dust filter mesh, fan blade compartment, evaporator coil... checking the external condition of the outdoor/indoor unit, electrical connections, checking airflow of the outdoor/indoor unit. Additionally, checking cooling efficiency, noise level, abnormal compressor vibrations, gas pressure inside the unit, and comparing with permissible values. You can entirely perform simple steps to self-clean your air conditioner at home before the peak of the hot season.
