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Danny CarrollAug 11, 2025
What to do if the Graco Control Unit metering valve fails to dispense when the actuator is tripped?
- AAnthony GrossAug 11, 2025
If the Graco Control Unit metering valve fails to dispense when the actuator is tripped, first, ensure that your operating air pressure is sufficient. Increase the air pressure to 80 psi (0.55 MPa, 5.5 bar) and clear the air line if it's blocked. Also, check for any kinks or blockages in the fluid or air hose and clear or straighten the hose as needed. Finally, check the fluid supply line for any interruptions, clear it, and refill the supply if necessary, and turn on the supply pump.