Troubleshooting Chart; Troubleshooting Charts - CAIRE Hi Flow Stroller Technical & Service Manual

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Troubleshooting Chart

Symptom
1) Unable to start fill or
excessivly long fill times
2) Liquid leaks from the
coupled QDVs during
the fill
3) Unable to disconnect
the portable from the
reservoir
4) Liquid leaks from the
QDV poppet after fill-
ing
5) Liquid leaks from the
vent valve tube/outlet
Probable Cause
a) QDV not properly engaged on
the reservoir
b) Reservoir is empty
c) Vent valve not open
d) FCV is open
e) Reservoir saturation pressure is
too low
f) Vent valve is obstructed
g) Leak in the system
h) QDV damaged or faulty
i) Faulty vent valve
a) Worn or damaged lip seal
a) Pop-off assembly not being uti-
lized (Top fill only)
b) QDVs are frozen together
a) Ice crystal preveting the QDV
from closing properly.
b) Dirty or damaged QDV poppet
a) Vent valve is not fully closed
b) The portable has been trans-
ported or laid in an improper
operating position
c) Vent valve is frozen open
d) Faulty vent valve
Corrective Action
Make sure the QDV on the portable and reservoir are properly
aligned. Ensure that a downward force is being applied to the
portable for top fill. Ensure the portable is completely engaged
for side fill.
Swap or re-fill the reservoir
Ensure that the vent valve lever is fully in the open position.
The lever must be open to begin a fill.
Be sure that the FCV knob is in the off ("0") position. If the
valve is open, fill times can increase.
Swap reservoirs or allow the reservoir time to stabilize and build
pressure
Inspect the vent tubes for blockages. Clean by blowing out with
compressed gas or replace parts if necessary.
Check the portable for leaks (RP18) and repair if needed.
Inspect the QDV and be sure the poppet opens properly and
smoothly. If necessary, replace the QDV (RP15 or RP16)
Replace the vent valve (RP19)
Replace the QDV lip seal if top fill (RP16). See reservoir techni-
cal manual for replacement of side fill lip seal on reservoir.
Ensure that the pop-off assembly on the reservoir is being used
(top fill only). Do not use force to separate the QDVs on top fill
or side fill.
Leave the units coupled with the vent valve closed and let them
sit until they warm up enough to disconnect. Always ensure
that male and female QDV's are cleaned and dried prior to each
fill.
Engage and disengage the portable onto the reservoir several
times to dislodge the ice crystal. Always be sure that the male
and female QDVs are wiped clean and dry before filling.
Replace the QDV (RP15 or RP16)
Ensure that the vent valve lever is fully in the closed position.
Return the portable to an upright or acceptable operating posi-
tion and allow several minutes for stabilization.
Allow the portable to warm until the vent valve can close. After
the warm up, allow up to 60 minutes for the portable to stabilize
and build pressure before operating.
Replace the vent valve (RP19)
Hi Flow Stroller Technical Service Manual • PN 14314465 Rev F
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