Troubleshooting
For help with potential problems, refer to Table 7 and Table 8.
If the program malfunctions and the instrument needs to be reset to the
default settings, push and hold F4 while the power is cycled.
Note: This erases all buffer contents and all of the operation variables to their
factory settings. A default message and the firmware part number are shown as the
instrument initializes its systems again.
Table 7 Critical errors
Error Possible cause Solution
Flow controller
failure
The unit is unable to find
the HOME switch on the
flow controller during
system initialization or at
the end of a sample test.
Start the instrument again.
There is a flow controller
malfunction.
Contact technical support.
There is trapped air in the
internal hydraulic tubing.
(PODS only)
Remove the air from the internal
hydraulic tubing including the
clean-out port with a clean fluid.
The instrument was not
purged before a change in
the viscosity of the sample
fluid occurred. (PODS
only)
Clean the system with a new
fluid.
Table 7 Critical errors (continued)
Error Possible cause Solution
Flow regulation
failure
The external pressure was
decreased during the
sample test.
Make sure that the external air
source is stable and set near
100 psi. Make sure that there
are no leaks on the sample cup
O-ring.
The instrument was not
purged before a change in
The viscosity of the
sample fluid occurred.
Purge the instrument.
The amount of sample
fluid is not sufficient.
Add more sample fluid.
There was an attempt to
flush the system.
(GlyCount only)
Flush the instrument. Make sure
that sample fluid stays in the
flow path.
Low flow rate,
possible high
viscosity
External pressure was
decreased during sample
test.
Make sure that the external air
source is stable and set near
100 psi. Make sure that there
are no leaks on the sample cup
O-ring.
The instrument was not
purged before a change in
the viscosity of the sample
fluid.
Purge the instrument.
The sample fluid viscosity
is too high. (PODS only)
Decrease the flow rate or dilute
the sample with a suitable clean,
filtered and miscible fluid that will
decrease the sampling viscosity
to within the range of the counter
(10–424 cSt).
The pick-up tube cap was
not removed.
Remove the cap.
English 19
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