After turning on the power supply, measuring the output voltage of printed circuit boards are normal, estimate the failure in the execution parts. Check the inlet valve and solenoid valve is normal, after power off, check the safety switch and pressure switch respectively, found that the pressure switch contact point contact undesirable. 7yJservice manual download site
7yJservice manual download site
Processing method: after clean the pressure switch contact, plus electrical commissioning, and troubleshooting.7yJservice manual download site
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