CLAAS A091h: Supply of the 4 valve above max value

The 4 valve is receiving a supply that exceeds the maximum allowed value. This may indicate an electrical issue or a fault in the 4 valve itself. The system may require further inspection to determine the cause.

1. 1

   The voltage delivered by the alternator

2. 2

   The voltage delivered by the battery

3. 3

   The 4 valve for signs of malfunction

1. 1

   Check

   The voltage delivered by the alternator and battery.

2. 2

   Clear

   The error code using the diagnostic tool.

3. 3

   Replace

   The 4 valve if the error reappears after clearing.