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anthony37Sep 18, 2025
What does the E-15 SYSTEM IDLE WARNING mean on my Graco Control Unit?
- Jjose20Sep 18, 2025
The E-15 SYSTEM IDLE WARNING means that the mix input is high, but the gun has not been triggered for 2 minutes. If you are not painting, clear the alarm and resume operation. If you are painting, shut down and inspect the fluid meter and air flow switch.










