Why is my Metso Controller overshooting or positioning too slow?
- IIan RogersAug 3, 2025
Overshooting or slow positioning in your Metso Controller can occur due to several reasons. You may need to change the PERF value. Another cause could be a dirty spool valve. Also, check if the supply air tube is too small or the supply air filter is dirty. The valve might be sticking, or there could be leakages in the tubes between the controller and actuator, or in the mechanical stop screws.