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error Velux
Error Code ERROR - MOTOR 1
Indicates a fault in the cable from motor terminal 1 (used in control units KFC 210 and KFC 220).
? What Causes This
Cable is interrupted or short-circuited.
✓ How to Fix It
Check the connection status of the motor cable; repair电缆故障（中断或短路）。
Source: page 67 of the official manual
From the manual
This error code appears in:
Velux Kfx 210