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Natalie OrtegaNov 18, 2025
What to do if my Graco 17С327 Paint Sprayer displays E=0X or the control board light is blinking/off?
- LLisa GardnerNov 18, 2025
If your Graco Paint Sprayer's display shows 'E=0X', or if the control board light is blinking or off while the sprayer has power, several issues could be the cause. You should: * Relieve the pressure, and then inspect and clean the spray tip. * Refill the paint supply and re-prime the pump. * Remove and clean the intake strainer, then reinstall it. * Clean the fluid filter. * If the prime valve is leaking, follow the pressure relief procedure and then repair the prime valve. * If leaking is around the throat packing nut, replace the packings and check the piston valve seat for hardened paint or nicks, replacing if necessary. Tighten the packing nut/wet-cup. * Remove the intake valve and clean it. Inspect the balls and seats for any damage, and replace them if needed. Rememb...
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