Troubleshooting - GEM B22 Operating Instructions Manual

13 Troubleshooting

Error
The product doesn't open or doesn't open
fully
The product doesn't close or doesn't
close fully
The product leaks between hand lever
and valve body
Connection between valve body and pip-
ing leaking
Valve body leaks
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Possible cause
Hand lever locking device engaged
Foreign matter in the product
Hand lever locking device engaged
Foreign matter in the product
Faulty product
Seals faulty
Incorrect installation
Flange bolting loose/thread leaking
Flange seals faulty
Valve body leaks or is corroded
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13 Troubleshooting
Troubleshooting
Disengage hand lever locking device
Remove and clean the product
Disengage hand lever locking device
Remove and clean the product
Check the product for potential damage,
replace the product if necessary
Replace seals
Check installation of valve body in piping
Retighten flange bolting / reseal threads
Replace flange seals
Check valve body for damage, replace
valve body if necessary
GEMÜ B22