5 flashes, 2 beeps - Communication Error (Main micom ↔ Sub micom)

What does 52 mean?

This error signifies a communication breakdown between the main microcontroller (micom) and a sub-micom within the system. This prevents proper data exchange and control.

• Poor/Loss of Communication between Main and Sub micom

Click steps to track your progress.

1. 1

   Turn off the power to the unit.

2. 2

   Check all internal communication cables and connectors between the main and sub-micom boards.

3. 3

   Reset the unit by removing power for at least 1 minute.

4. 4

   If the communication error continues, a technician should diagnose the micom boards for faults.