Specifications

PCA
Troubleshooting
TABLE 7-1. TROUBLESHOOTING GUIDE (Cont.)
Fault Probable Cause & Remedy
“ **** ” appears in one or more
value fields.
“ - - - - ” appears in one or more value
fields of the Combustion Test
Screen.
“ XXXX ” appears in one or more
value fields.
Analyzer won’t respond when a
panel key is pressed.
Pump motor sounds sluggish,
stalls, or will not start.
The field’s associated sensor is not
installed.
a. The analyzer is not able to calcu-
late a numerical value based on
measured combustion data. The
“- - - -” is replaced with numerical
values when the analyzer begins
to detect valid combustion data.
b. Sensor in error during warm-up.
The field’s associated sensor is de-
tecting a value that is outside the
analyzer’s detection range. “XXXX”
is replaced with numerical data
when the analyzer detects values
that fall within its range.
Microprocessor needs to be reset.
Press RESET button (Fig. 4-7).
a. Flow restricted. Check that the
filter element in the Water Trap/
Filter Assembly is clean and not
saturated with water (Fig. 6-3).
Also, verify that the probe hose is
not pinched.
b. Flow restricted. Check the Par-
ticulate Filter is clean and not
blocked (Fig. 6-2).
c . Loose pump connection. Disas-
semble analyzer and ensure that
the pump connector is securely
attached to the circuit board
d . Pump defective. Replace pump
assembly.
Instruction 0024-9219 7-5