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 S 865-007
 (6)  
Put the computer select switch on the EICAS control panel (panel P9) in the AUTO position.

 S 215-008

 (7)  
Make sure the EICAS message, PROBE HEAT, shows on the top EICAS display (panel P2).

 S 215-009

 (8)
Make sure these EICAS messages do not show on the EICAS display:

 (a)  
CAPT PITOT HEAT

 (b)  
L AUX PITOT HEAT

 (c)  
F/O PITOT HEAT

 (d)  
R AUX PITOT HEAT

 D. Do a Test of the Pitot Probe Heat Systems
 S 865-010
 WARNING:_______DO NOT TOUCH THE PROBES DURING THE TEST. THE PROBES BECOME VERY HOT AND CAN BURN YOU.
 CAUTION: DO NOT OPERATE THE PROBE HEAT FOR MORE THAN 10 MINUTES.
_______
 DAMAGE TO THE PROBE CAN OCCUR.

 (1)  
Push and hold the WING ANTI-ICE WINDOW/PROBE HEAT test switch on the M10398 test panel (P61), in the WINDOW/PROBE HEAT position.

 S 215-011

 (2)  
Make sure that the CAPT PITOT, L AUX PITOT, F/O PITOT, and R AUX PITOT annunciator lights are off.

 S 215-012

 (3)  
Make sure that the EICAS messages, CAPT PITOT HEAT; L AUX PITOT HEAT; F/O PITOT HEAT; and R AUX PITOT HEAT, do not show on the EICAS display.

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 S 215-044
 (4)  Do the steps that follow to do a check of the pitot heat EICAS messages:
 (a)  Open each of the given circuit breakers on the main power distribution panel, P6 and make sure the correct EICAS message shows and the annunciator light is on:
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 ~.................................................................. | | EICAS MESSAGE AND | | CIRCUIT BREAKER | ANNUNCIATOR | .................................................................... | 6L13,6L14,6L15, PITOT HEAT CAPT MAIN | CAPT PITOT | .................................................................... | 6L14,6L15 or 6L16, PITOT HEAT L AUX | L AUX PITOT | .................................................................... | 6L21, PITOT HEAT R AUX | R AUX PITOT | .................................................................... | 6L22, PITOT HEAT F/O MAIN | F/O PITOT | 2.......................................…..........................1
　
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