Aircon Light Blinking Issues – Causes & Solutions
Is your aircon light blinking? A blinking light on your Daikin, Midea, Mitsubishi, or Panasonic air conditioner often indicates an error that requires immediate attention. At Zoomcool Aircon, we specialize in diagnosing and fixing aircon light blinking issues in Singapore.
Why Is My Aircon Light Blinking?
Aircon light blinking is usually a sign of an internal malfunction. Common causes include:
Sensor Malfunction – Faulty sensors can disrupt normal operation.
Refrigerant Issues – Low or leaking refrigerant affects cooling efficiency.
Clogged Air Filters – Restricted airflow causes overheating.
Drainage Problems – Water accumulation triggers error codes.
Electrical & PCB Faults – Wiring issues or a faulty PCB board can cause blinking.
Compressor Problems – A faulty compressor can lead to system failure.
Outdoor Unit Malfunction – Communication errors between indoor and outdoor units.
Aircon Light Blinking Error Codes by Brand
Daikin Aircon Light Blinking
Flashing Timer Light – Possible refrigerant leak or indoor unit issue.
Green Light Blinking – Sensor malfunction or PCB board failure.
Flashing Red Light – Indoor-outdoor communication error.
Solution: Reset the aircon, clean the filters, and check for error codes. If the issue persists, seek professional servicing.
Midea Aircon Light Blinking
Two or Three Blinks – Thermistor sensor issue.
Continuous Blinking – Compressor failure or low refrigerant.
Red Light Blinking – Electrical fault or power supply issue.
Solution: Check for gas leaks, reset the unit, and inspect the outdoor condenser. If needed, replace faulty wiring or sensors.
Mitsubishi Aircon Light Blinking
Orange Light Blinking – Indoor coil sensor fault.
Green Light Blinking – Communication error between indoor and outdoor units.
Flashing Yellow Light – Fan motor or capacitor issue.
Solution: Restart the aircon, inspect PCB wiring, and clean the drainage system. Professional servicing is recommended for persistent issues.
Panasonic Aircon Light Blinking
Power Light Blinking 7 Times – Compressor or outdoor unit failure.
Timer Light Blinking 5 Times – Faulty temperature sensors.
Flashing Blue Light – Overheating or airflow restriction.
Solution: Check the circuit board, reset the unit, and inspect for gas leaks. Regular servicing can help prevent recurring issues.
Support is extended by our brands
How to Fix Aircon Light Blinking Issues
1️⃣ Turn Off and Restart the Aircon – Sometimes, a simple reset solves the problem.
2️⃣ Check and Clean Filters – Dirty filters restrict airflow and cause overheating.
3️⃣ Inspect Drainage Pipes – Ensure water is draining properly to avoid blockages.
4️⃣ Check Error Codes – Different brands display error codes that indicate specific problems.
5️⃣ Inspect Wiring and Sensors – Loose or damaged wiring can cause communication failures.
6️⃣ Call a Professional – If the blinking persists, it’s best to contact an expert technician.
Best Aircon Service and Annual Contract Available
Choose Zoomcool Aircon for unparalleled aircon service and the convenience of annual contracts. Your comfort is our priority.
Preventative Maintenance for Aircon Light Blinking Issues
Regular maintenance helps prevent blinking light issues and extends the lifespan of your aircon. Here are some tips:
Schedule Routine Servicing – Regular cleaning and inspections keep your aircon running efficiently.
Check for Refrigerant Leaks – Low refrigerant levels affect cooling performance.
Ensure Proper Installation – Faulty installations can lead to wiring and drainage problems.
Monitor Electrical Components – Prevent power surges and PCB failures with proper maintenance.