
The air conditioner is running normally, but the condenser unit is not functioning.
When you notice the air conditioner running normally (making noise), but no cool air is coming out and the condenser unit is not working, it's likely that the machine has a faulty starting capacitor block in the condenser unit, or the block is damaged.
Another possibility is a malfunctioning control circuit. The cause could be a gas leak in the air conditioner or a dirty filter. Solution: For faults such as faulty capacitors, damaged blocks, or gas leaks, you should consult a repair technician for replacement. If it's a dirty filter, regular cleaning is recommended to prevent dirt buildup.
The air conditioner powers on but shows no signs of operation.
If you turn on the air conditioner and nothing happens, it means there's a problem with the electrical circuit. It could be due to rodents chewing through wires, a faulty circuit breaker, or a damaged power supply circuit.
To remedy this situation, users should first check if the circuit breaker is on and ensure that the power plug is securely connected. Next, check the wiring for breaks, shorts, or signs of overload. Also, check if the unit is low on refrigerant and needs a recharge.
It's important to note that if the air conditioner fails to start, it could be due to a controller malfunction. Therefore, check the control system to see if the air conditioner is truly without power. Then, test if the remote is still functioning; it could simply be out of batteries.
The air conditioner accumulates dust over time without proper cleaning.

In areas with high dust and smoke levels, especially along highways with heavy traffic, the air filter on the air conditioner easily gets clogged with dust, reducing its efficiency. If you notice the air conditioner suddenly running weakly, inadequately cooling, or making strange noises, immediately check the dust filter.
The air conditioner leaks water during operation.
The cause of water leakage during air conditioner operation is moss buildup on the drainage pipe, which blocks it over time, preventing water from draining properly and causing it to overflow. Typically, this occurs due to improper drainage pipe installation.
The remedy for this issue is to reinstall the air conditioner yourself and adjust the drainage pipe to ensure proper slope. Use a plumbing snake to clear the drainage pipe or replace it with a new one. If you're not confident in your skills, you can call a maintenance technician to help minimize errors during the process.
Air conditioner experiencing frost buildup.
Signs of 'frost buildup' on the air conditioner include finding frost on the evaporator coil when removing the dust filter. The cause of frost buildup is dust accumulation on the evaporator coil due to lack of cleaning over time. Additionally, it may be caused by a faulty gas line or low refrigerant.
The best solution in this case is to call a technician to check for gas leaks, usually caused by a punctured gas line or a faulty gas valve lock, rather than attempting to fix it yourself due to lack of proper tools.
Air conditioner emitting foul odor.

Many people, after a period of not using the air conditioner, suddenly notice a foul odor, especially in single-directional units, caused by mold buildup. In this case, effective remedies include using the remote to activate the (Dry) mode, which dehumidifies the air. If the odor persists, chemical cleaning solutions should be used to thoroughly clean the inside of the air conditioner.
Error causing the remote control to not display.
The remote control is often misplaced, dropped, or forgotten without battery replacement. Therefore, encountering issues with the remote control is completely understandable. When faced with this situation, users need to handle it calmly. For instance, if the remote display is not visible, try replacing the batteries or scraping off any corrosion that may affect the battery contacts.
