Red 4 Flashes, Green 8 Flashes (Single System) — Reverse VDD Permanent Stop

What does Red 4 Flashes, Green 8 Flashes mean?

The red LED flashes four times and the green LED flashes eight times on the indoor unit. This indicates a permanent shutdown due to a reverse VDD (Voltage Dependent Detector) protection, possibly related to incorrect voltage phasing or severe power fluctuations.

• Incorrect power phase connection.
• Significant and sustained power supply irregularities.
• Internal electrical fault triggering reverse VDD protection.

Click steps to track your progress.

1. 1

   Cut the power to the air conditioning unit at the main electrical panel.

2. 2

   Allow the unit to cool down and fully discharge for several minutes.

3. 3

   Restore power and observe if the error clears.

4. 4

   This type of error usually requires a qualified electrician to check the power supply and wiring connections.