Troubleshooting High Pressure And Low Pressure Leaks - GE Datex-Ohmeda Aisys Carestation Reference Manual

7.2 Troubleshooting high pressure and low pressure leaks

Problem
High Pressure Leak
Low Pressure Leak
Bellows leak
Breathing System Leak
Breathing System Leak
(Intermittent)
Unable to begin mechanical
ventilation
M1046983 04/08
Possible Cause
Pipeline leak
O flush valve
2
System switch
Cylinder not installed properly
Cylinder transducer
Cylinder gaskets
Relief valves
Leak in mixer
Leaking flush valve
Leaking system switch
Pop-off valve diaphragm not sealing
properly
Bellows mounting rim loose
Bellows improperly mounted or has a
hole or tear
Absorber canister open or missing
Damaged/missing canister o-ring
ACGO O sense check valve
2
ABS not fully engaged
No O supply
2
Defective Bag/Vent switch
Action
Use a leak detector or Snoop to check for source of leak.
Repair or replace defective parts.
Use a leak detector or Snoop to check for source of leak.
Make sure tubing connections are tight.
Replace valve if defective.
Use a leak detector or Snoop to check for source of leak.
Make sure tubing connections are tight.
Replace switch if defective.
Make sure cylinder is correctly aligned.
Verify that tee handles are tight.
Use a leak detector or Snoop to check for source of leak.
Tighten/replace transducer if defective.
Use a leak detector or Snoop to check for source of leak.
Replace gasket if defective.
Use a leak detector or Snoop to check for source of leak.
Replace valve if defective.
Remove tubing from inlet port of vaporizer manifold
(mixer outlet tube) and perform leak test of mixer.
Attach pressure measuring device on CGO.
Replace valve if device shows increased pressure.
Attach pressure measuring device on CGO.
Replace switch if device shows increased pressure.
Disassemble pop-off valve; inspect and clean seats;
reseat; reassemble.
Remove rim and pop-off valve diaphragm; reseat
diaphragm; snap rim (2) into place.
Check that only the last bellows convolute is mounted to
the rim and that the ring roll is in the groove under the
rim. Inspect the bellows for damage; replace.
Install canister properly.
Check/replace o-rings.
Replace.
Remount ABS.
Check O supply.
2
Check Bag/Vent switch.
7 Troubleshooting
7-3