2008T Troubleshooting Guide
P/N 490292 Rev. A
PHT- 2.0.0 START PRESSURE TESTS
a) RESET ALL alarms!
b) At the bottom of the screen, press the [Test & Options] tab. TWO (2) possible scenarios:
1) IF the [Pressure Test] button is BLUE: Press [Pressure Test] THEN ‘Enter’ then
IMMEDIATELY see procedure number PHT- 2.0.1 (page 521).
2) IF the [Pressure Test] button is GRAY: Press [Both Tests] THEN ‘Enter’ THEN QUICKLY read
parts a AND b below:
a) Both Tests start with “Get Neg TMP”. If (and ONLY if) this initial “Get Neg TMP” period lasts
LONGER THAN two (2) minutes see ABOVE procedure number PHT- 1.0.0 (page 518). If “Get
Neg TMP” lasts less than two (2) minutes continue to part b.
b) ENSURE all tests above Negative Pressure Tests pass*. When “Conductivity Low Soft”
appears IMMEDIATELY see procedure number PHT- 2.0.1 (page 521).
* Other than Battery all other test failures above Negative Pressure may cause the Pressure
Tests to fail.
PHT- 2.0.1 PRESSURE TESTS RUNNING / ANALYZE TMP
a) Call debug screen 1.
b) The Pressure Tests start with “Remove Air” (FILACT = 1) followed
by “Get Neg TMP”. The UF Pump strokes until ATMP reaches
about -250 mmHg then “Neg Flow On” appears followed by “Pos
Flow Off”.
c) Is
“Get Neg TMP” lasting longer than ninety (90) seconds?
Yes “Get Neg TMP” longer than 90 seconds! See procedure number PHT- 2.0.2 (page 521).
No Proceed to
page 523, procedure number PHT- 3.0.0.
PHT- 2.0.2 “GET NEG TMP” LASTING LONGER THAN 90 SECONDS
ENSURING “Get Neg TMP” is still presenting watch FILACT for one (1) minute. Does
FILACT EVER = 1 indicating a possible hydraulic air leak?
Yes FILACT = 1 WHILE “Get Neg TMP” is up! Proceed to page 452, SECTION 8 – FILLING
PROGRAM PROBLEMS
No FILACT REMAINS = 0! See procedure number PHT- 2.0.3 (page 522).
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