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12 Troubleshooting
Error
Working medium escapes from leak
detection hole
The product doesn't open or doesn't
open fully
The product leaks downstream (doesn't
close or doesn't close fully)
The product leaks between actuator and
valve body
Valve body connection to piping leaks
Valve body leaks
Valve doesn't open/close or doesn't
open/close fully
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Error cause
Plug diaphragm faulty
Actuator faulty
Plug diaphragm incorrectly mounted
Operating pressure too high
Plug diaphragm incorrectly mounted
Foreign matter between plug diaphragm
and valve seat
Valve body leaks or is damaged
Plug diaphragm faulty
Plug diaphragm incorrectly mounted
Bolting between valve body and actuator
loose
Plug diaphragm faulty
Actuator/valve body damaged
Incorrect installation
Sealing material faulty
Valve body leaks or is corroded
Voltage is not connected
Cable ends incorrectly wired
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12 Troubleshooting
Error clearance
Check plug diaphragm for potential
damage, replace plug diaphragm if
necessary
Replace actuator cartridge, replace
actuator if necessary
Remove actuator, check plug diaphragm
mounting, replace plug diaphragm if
necessary
Operate the product with operating
pressure specified in datasheet
Remove actuator, check plug diaphragm
mounting, correct if necessary
Remove actuator, remove foreign matter,
check plug diaphragm and valve body for
damage and replace if necessary
Check valve body for potential damage,
replace valve body if necessary
Check plug diaphragm for potential
damage, replace plug diaphragm if
necessary
Remove actuator, check plug diaphragm
mounting, correct if necessary
Retighten bolting between valve body
and actuator
Check plug diaphragm for potential
damage, replace plug diaphragm if
necessary
Replace actuator/valve body
Check installation of valve body in piping
Replace sealing material
Check valve body for damage, replace
valve body if necessary
Connect voltage
Wire cable ends correctly
GEMÜ F60
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