2008T Troubleshooting Guide
P/N 490292 Rev. A
F- 2.8.0 ISOLATE FLOW ERROR
a) Call debug screen 0 to locate Flow Error. If EVER = 1,
even just once, a Flow Error is present!
b) WITHOUT LOOKING AWAY, watch Flow Error for two (2) minutes OR until if it EVER = 1. TWO (2)
possible scenarios:
1) IF (and ONLY if) Flow Error = 1 even if just once: A problem is indicated in the ‘bypass circuit’!
Proceed to
page 55, procedure number F- 5.0.0.
2) IF Flow Error ALWAYS = 0: See procedure number F- 2.8.1 (page 42).
F- 2.8.1 FLOW ERROR ALWAYS = 0
a) Press and hold the keyboard’s “1” key for five (5) seconds!
b)
Allow forty-five (45) seconds
BEFORE continuing to part c!
c) Call debug screen 5.
d)
Qdl (Figure right) MUST REMAIN
between 720 and 880. Watch it for
one (1) minute or until if it EVER
becomes less than 720 or more
than 880!
e) TWO (2) possible scenarios:
1)
Qdl is NEVER LESS THAN 720 OR MORE THAN 880! Leaving the shunt door OPEN, see
procedure number F- 2.9.0 (page 42).
2)
Qdl is OR becomes less than 720 OR more than 880! A problem is indicated in the ‘bypass’
circuit! Proceed to page 55, procedure number F- 5.0.0.
F- 2.9.0 Qdl REMAINING BETWEEN 720 AND 880 / ISOLATE FOR A LEAKING BC VALVE
a) Call debug screen 4 and locate PDIA AND ADIA (Figure right).
b) BOTH should be between 2.0 and 8.5 AND STABLE i.e. DOES NOT
change more than 0.4 per minute. WITHOUT LOOKING AWAY, watch for
two (2) minutes! TWO (2) possible scenarios:
1) IF (and ONLY if) PDIA AND ADIA are
REMAINING stable between 2.0 and 8.5: See
procedure number F- 2.9.2 (page 44).
2) IF PDIA AND / OR ADIA is NOT remaining stable between 2.0 and 8.5: See parts a THROUGH f
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