GEM 566 Series Operating Instructions Manual page 53

15.2 Troubleshooting
Error
The product leaks downstream (doesn't
close or doesn't close fully)
The product doesn't open or doesn't open
fully
The product doesn't close or doesn't
close fully
The product leaks between actuator and
valve body
The product leaks between actuator
flange and valve body
Body of the GEMÜ product is leaking
Valve body connection to piping leaks
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Possible cause
Operating pressure too high
Valve body leaks or is damaged
Actuator defective
Operating pressure too high
Foreign matter in the product
The actuator design is not suitable for the
operating conditions
Voltage is not connected
Cable ends incorrectly wired
The actuator design is not suitable for the
operating conditions
Foreign matter in the product
Voltage is not connected
Bolting between valve body and actuator
loose
Actuator/valve body damaged
Mounting parts loose
Valve body / actuator damaged
Body of the GEMÜ product is faulty or
corroded
Incorrect installation
Incorrect installation
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15 Troubleshooting
Troubleshooting
Operate the product with operating pres-
sure specified in datasheet
Check valve body for potential damage,
replace valve body if necessary
Replace the actuator
Operate the product with operating pres-
sure specified in datasheet
Remove and clean the product
Use an actuator that is designed for the
operating conditions
Connect voltage
Wire cable ends correctly
Use an actuator that is designed for the
operating conditions
Remove and clean the product
Connect voltage
Retighten bolting between valve body and
actuator
Replace actuator/valve body
Retighten mounting parts
Replace valve body/actuator
Check the body of the GEMÜ product for
potential damage, replace body if neces-
sary
Check installation of valve body in piping
Check installation of valve body in piping
GEMÜ 566
Code S0