V
Virginia GallegosAug 27, 2025
What does error E21 mean on VAT 61232-KEGJ-0002 display?
- CChristopher AcostaAug 27, 2025
If your VAT Control Unit displays 'E 21' and the position '009999' (fatal error - rotation angle of valve plate limited during power up), check if the valve plate is centric adjusted, if the valve unit is heavily contaminated or if the valve plate is mechanically obstructed. Adjust the valve plate according to the maintenance procedure, clean the valve unit, and resolve any obstructions. Reset the control unit by cycling the power off and on, or send a reset command locally via the service port with CV/CPA/Service Box2.