Troubleshooting Chart - CAIRE Companion C1000 Technical & Service Manual

XI
Troubleshooting & Repair Procedures
Table 5 below provides troubleshooting procedures for the Companion Portables. This guide is not all-inclusive but is intended to
serve as a general outline for solving operational problems. The table describes symptoms, identifies probable causes, and suggests
corrective actions.
When more than one probable cause is identified, the causes are listed in order of most likely to least likely reasons for the problem.
Symptom
1) Unable to start fill or ex-
cessively long fill times
2) Liquid leaks from the
coupled QDVs during
the fill
3) Unable to disconnect the
poratble from the reser-
voir
4) Liquid leaks from the
QDV poppet after filling
Table 8 - Troubleshooting
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
utilized
b) QDVs are frozen together
a) Ice crystal preventing the QDV
from closing properly.
b) Dirty or damaged QDV poppet Replace the QDV (RP17)
Corrective Action
Make sure the QDV on the portable and reservoir are properly
aligned and ensure that a downward force is being applied to the
portable.
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 (RP2) and repair if needed.
Inspect the QDV and be sure the poppet opens properly and
smoothly. If necessary, replace the QDV (RP17)
Replace the vent valve (RP16)
Replace the QDV lip seal (RP18)
Ensure that the pop-off assembly on the reservoir is being used.
Do not use force to separate the QDVs.
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.
Companion Portable Technical Service Manual • PN 20562220 Rev B
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