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GEMÜ 567 servoDrive
14 Troubleshooting
14 Troubleshooting
Error
Error cause
Troubleshooting
Working medium escapes from leak de-
tection hole
Plug diaphragm faulty
Check plug diaphragm for potential dam-
age, replace plug diaphragm if necessary
The product doesn't open or doesn't open
fully
Actuator faulty
Replace actuator cartridge, replace actu-
ator if necessary
Plug diaphragm incorrectly mounted
Remove actuator, check plug diaphragm
mounting, replace plug diaphragm if ne-
cessary
The product leaks downstream (doesn't
close or doesn't close fully)
Operating pressure too high
Operate the product with operating pres-
sure specified in datasheet
Plug diaphragm incorrectly mounted
Remove actuator, check plug diaphragm
mounting, correct if necessary
Foreign matter between plug diaphragm
and valve seat
Remove actuator, remove foreign matter,
check plug diaphragm and valve body for
damage and replace if necessary
Valve body leaks or is damaged
Check valve body for potential damage,
replace valve body if necessary
Plug diaphragm faulty
Check plug diaphragm for potential dam-
age, replace plug diaphragm if necessary
The product leaks between actuator and
valve body
Plug diaphragm incorrectly mounted
Remove actuator, check plug diaphragm
mounting, correct if necessary
Bolting between valve body and actuator
loose
Retighten bolting between valve body and
actuator
Plug diaphragm faulty
Check plug diaphragm for potential dam-
age, replace plug diaphragm if necessary
Actuator/valve body damaged
Replace actuator/valve body
Connection between valve body and pip-
ing leaking
Incorrect installation
Check installation of valve body in piping
Sealing material faulty
Replace sealing material
Valve body leaks
Valve body leaks or is corroded
Check valve body for damage, replace
valve body if necessary
Valve doesn't open/close or doesn't
open/close fully
Voltage is not connected
Connect voltage
Cable ends incorrectly wired
Wire cable ends correctly