Operation LED blinks 6 times, Timer LED blinks 4 times, and wired remote shows 64 — PFC circuit error / Active filter error.

What does Operation 6 Times / Timer 4 Times / 64 mean?

The inverter output DC voltage is too high (over 415V for 3+ seconds) or the inverter input DC voltage is too high (over 425V) or too low (below 80V) for certain models. This can also occur after a momentary power cut-off.

• Voltage drop or noise affecting indoor/outdoor units.
• Loose or erroneous connector connections.
• Main PCB defective or Active Filter Module issue.

Click steps to track your progress.

1. 1

   Reset the power to the outdoor unit by cycling its circuit breaker, waiting 30 seconds, then turning it back on.

2. 2

   Check for any external factors like power fluctuations or significant electrical noise in your home's power supply.

3. 3

   Ensure all electrical connections to the outdoor unit are secure and correctly made.

4. 4

   If the error persists, professional service is required to inspect the main PCB or active filter module.