TROUBLESHOOTING
1-6 Noise is generated in the unit. (Noise check)
Noise check
Gas leaks in the high pressure part.
Check the joints of each pipe.
Looseness?
Hole?
Note 1: With the characteristic of the electric-pneumatic ratio valve, if gas is fed
with the connector opened, the safety valve may function. This is not a
defect.
Replace the manifold U.
Electric-
pneumatic ratio
valve?
Primary pressure
reducer safety valve?
Note 1
Replace the electric-
pneumatic ratio valve.
Replace the primary
pressure reducer.
Manifold U?
End
Is noise generated during
gas feeding?
Is noise generated during
halt of operation?
2-7
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