Why is B pump pressure low on Graco XM?
- MMichael KellerAug 26, 2025
If the B pump pressure is abnormally low compared to the A pump pressure in your Graco Paint Sprayer, it could be because the B air motor is icing up, causing restriction and lower fluid pressure, or the B pump is binding. Open the air motor de-ice bleed air controls. Allow ice to melt. Dry compressed air. Heat compressed air.