Daikin FTXS12LVJU 12,000 BTU Wall Mount Mini Split Indoor Unit with Inverter and Quiet Operation A1 Error Fix: Indoor Unit PCB Defect

When to Call a Professional

While many mini split repairs can be done safely at home, consider hiring a qualified technician if:

• The repair involves electrical wiring, gas lines, or refrigerant
• You've tried the top-ranked fix and the error persists
• You smell gas, see sparking, or notice water leaking
• The repair requires specialized tools you don't have
• Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $300-$450.