GEM CleanStar C60 HPS, Installation, Operating And Maintenance Instruction

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C60
18 Troubleshooting / Fault clearance
Fault Possible cause Fault clearance
Control medium escapes from connector 4*
(control function NC) or from connector 2*
(control function NO)
(see chapter 11.3 "Control functions")
Piston lip ring leaking Replace valve
Control medium escapes from leak detection
port* (only for control function NC)
Lower spindle lip ring leaking
Replace valve and check control
medium for impurities
Working medium escapes from leak detection
port*
Diaphragm faulty Replace valve
Valve doesn't open or doesn't open fully
Control pressure too low
(for control function NC)
Operate valve with control
pressure specified in data sheet
Pilot valve faulty Check pilot valve and replace
Control medium not connected Connect control medium
Lower spindle lip ring or piston lip
ring leaking
Replace valve
Stroke limiter** incorrectly set Correctly adjust stroke limiter
Actuator spring faulty
(for control function NO)
Replace valve
Valve leaks downstream
(doesn't close or doesn't close fully)
Operating pressure too high
Operate valve with operating
pressure specified in data sheet
Control pressure too low
(for control function NO
and for control function DA)
Operate valve with control
pressure specified in data sheet
Foreign matter between
diaphragm and valve body weir
Replace valve
Valve body weir damaged Replace valve
Diaphragm faulty Replace valve
Actuator spring faulty
(for control function NC)
Replace valve
Valve body connection to piping leaks
Incorrect installation
Check installation of valve body
in piping
Union nuts loose Tighten union nuts
Control medium escapes from transparent
cap** (for control function NO and for control
function DA)
Upper spindle lip ring leaking Replace valve
* see chapter 10 "Construction"
** see chapter 11.5 "Setting the stroke limiter"
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