11
Alarms
11.1
Malfunctions and remedies
In the event of malfunctions immediately deactivate the mixproof butterfly valve
and secure it against inadvertent reactivation. Malfunctions may only be
remedied by qualified staff, who must observe the safety instructions.
Malfunction
Cause
Remedy
Actuator does not work
Air hoses clogged or
leaking
Clean or replace the air
hoses
Control air pressure too
low
Increase the control air
pressure
Solenoid valve defective
Replace the solenoid
valve
Valve disk is blocked
Clear the blockage
No feedback signal
Proximity switch adjusted Adjusting the proximity
switch
Proximity switch not
connected correctly
Check and correct the
wiring
Proximity switch faulty
Replace the proximity
switch
Valve disk is blocked
Clear the blockage
Leakage at flanges
Disk seal defective
O-ring defective
Replace the disk seal
Alarms
Malfunctions and remedies
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29.07.2021