2008T Troubleshooting Guide
P/N 490292 Rev. A
STEP #3
a) The screen should say “Connect a 1.255 K ohm resistor...”
b) Place the 80° C (1.255 KΩ) plug into the
2
nd
distribution board position from the left. Is [Pre-
Temperature Reference] between 191 and 203?
Yes Between 191 and 203! ‘Sharply press ‘Enter’ then see STEP #4 (page 321).
No NOT between 191 and 203! ENSURE the 80° C plug is placed properly at the
2
nd
position from
the left! If okay, see procedure number T- 7.1.0 (page 321).
STEP #4
a) The screen should say “Connect a 0.915 K ohm resistor...”.
b) Place the 90° C (0.915 KΩ) plug into the
2
nd
distribution board position from the left.
Is [Pre-Temperature Reference] between 204 and 216?
Yes Between 204 and 216! Save the calibration then proceed to
page 322, procedure number
T- 7.2.0.
No NOT between 204 and 216! ENSURE the 90° C plug is placed properly at the
2
nd
position
from the left! If okay, see procedure number T- 7.1.0 (page 321).
T- 7.1.0 ERROR DURING TEMP SENSOR CALIBRATION
Perform this procedure if (and ONLY if) “Operator Error” OR “Actuator Board Error” banner occurred OR a
[Pre-Temperature Reference] value was not in range.
a) Turn the machine OFF!
b) Using a different FOUR-RESISTOR SET return to (ABOVE) procedure number T- 7.0.0 (page 320)
HOWEVER, if you return here see part c.
c) Read before performing! With the machine off, swap in the listed components (see COMPONENT
LIST below), one at a time, with known good then, in between, return to (ABOVE) procedure number
T- 7.0.0 (page 320) to test each new component until the error banner does NOT occur indicating the
last component swapped in is the problem.
COMPONENT LIST: 1) Actuator-Test Board*; 2) Sensor Board*; 3) Functional Board*; 4) Sensor
Board cable; 5) Distribution board; 6) Motherboard*.
* To LOCATE these boards refer to Figure 4A (page 10)
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