Waukesha Cherry-Burrell
Troubleshooting
April 2008
95-03083
Page 43
Troubleshooting
PROBLEM
POSSIBLE CAUSE
SUGGESTED ACTION
Leaking Air
Air leaking from between
actuator and Control Module
Missing or damaged O-rings
Disassemble and remove Control Top,
inspect air vent plug O-ring and mounting
cup O-rings, replace if required.
Wrong porting arrangement
Check porting and revise as required.
Air leaking from port in
Control Module base.
Wrong porting arrangement
Check porting and revise as required.
Air leaking inside Control
Module.
Solenoid valve gasket failure
Check solenoid O-ring. Replace or adjust as
necessary.
Operation
Valve fails to open
Air pressure too low
Set air pressure to 60psi (4 bar) for 4", 5",
and 6" light spring actuator. 6" standard
spring the pressure is 80 psi (bar)
Control failure
Check control sequence.
Check air supply.
Vent blocked
Check control wiring and power source.
Check actuator vent is not blocked.
Valve fails to close
Mechanical failure
Check for debris in valve.
Check for loose stems.
Moisture in Control Module
Missing and/or damaged O-ring
Replace module O-ring.
Top not screwed on
Ensure top is fully screwed down onto
module base.
Vent entry
Rotate vent down (horizontal mount) for
draining.
Plumb vent with down spool to deflect
direct spray.
Wire port entry
Tighten strain gauge grommet.
Seal the wire-entry point.
Electrical
Set & Forget
No Valve “Closed” or “Open”
indication LED
No Power
Check power connections.
No output triggered
Check proper assembly of indicator stem
and target. Reset the sensor.
Green blinking LED upon
power up
No target present
Power down and power up with target
present.
Red blinking LED upon
power up
Target out of range
Re-position target within sensor area (by
checking proper assembly).
No Valve “Closed” or “Open”
indication
Lower switch not adjusted properly
Adjust switch.