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Hydraulic Valves Stuck On: Check Flow Direction

After replacing hydraulic valves and actuator blocks, all valves stay on. Valves are 250 series.

Cause and Fix

Hydraulic valves are directional. Look for the flow arrow on the valve body. The pressure (supply) side must connect to the inlet; laterals to the outlet (usually where the solenoid mounts). If installed backward, they remain open. Re-plumb to match the arrow.

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