GEA VARIVENT D Series, Operating Instruction

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11 Alarms
11.1 Malfunctions and remedies
In the event of malfunctions immediately deactivate the valve and secure it
against inadvertent reactivation. Malfunctions may only be remedied by qualified
staff, who must observe the safety instructions.
Malfunction Cause Remedy
Valve does not work
Fault in the control system
Check the system
configuration
No compressed air or
compressed air too low
Check compressed air supply
and check air hoses for free
passage and air tightness
Fault in the electrical system
Check actuation / external
controller and routing of
electrical lines
Solenoid valve defective Replace the solenoid valve
Valve does not close
Dirt/foreign material between
valve seat and valve disk Clean valve housing and valve
seat
Valve closes too slowly
O-rings in actuator and control
top are dry (friction losses)
Grease O-rings
Leakage in the area of the
valve housing
Housing O-rings defective
Valve disassembly - Housing
Replace the O-Ring
Leakage in the lantern Sealing ring defective Replace the sealing ring
Leakage in the leakage cavity V-rings defective Replace the V-rings
Alarms
Malfunctions and remedies
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