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error Upgraded
Error Code CPF00
Link Master Error / Display Panel Error — the microcontroller cannot exchange data with the LCD display panel.
? What Causes This
Faulty connection between main controller and display panel, defective display panel, or microcontroller communication failure.
✓ How to Fix It
- Power off the unit completely.
- Check the connection cable between the main controller and display panel for loose or damaged connectors.
- Reseat the display panel connector firmly.
- Power on and observe if error clears.
- If error persists, the display panel or internal communication circuit may be defective and requires service.
Source: page 45 of the official manual
From the manual
This error code appears in:
Upgraded 30A Solar Charge Controller