Fault Code A3

Fault: Drain Level Control System Abnormality
Drain clogging, upward slope, etc.
Defective drain pump
Defective float switch or short circuit connector

For Daikin split and multi-split air conditioning systems included wall-mounted, duct-connected, floor-standing, multi-flow, stylish, european, ururu sarara & cassette-type units.
If molded case circuit breakers or earth leakage circuit breakers have tripped, do not reset the breaker immediately without first checking for any problems with insulation of equipment.
Resetting breakers without a check of insulation may cause damage to equipment.