If your aircon is not working and you notice ac blinking lights on the unit, it could indicate an issue with the system. There could be several reasons for this, such as a dirty air filter, low refrigerant levels, or a faulty thermostat. To resolve the issue, it’s best to contact a professional aircon service provider like Letscool Aircon. Their experienced technicians will diagnose the problem and offer the appropriate solution, whether it’s cleaning or replacing the air filter, topping up refrigerant, or fixing a faulty part. Regular aircon service and maintenance can prevent these issues from occurring in the first place, ensuring that your aircon system runs efficiently and effectively. If your aircon is not working and you see blinking lights, contact Letscool Aircon for reliable aircon service and repair in Singapore.