Probes Window Heat Panel

Question 1

On the ground, with the PROBE/WINDOW HEAT pushbutton in AUTO, when are the probe and mast heaters activated?

Answer 1

LOW with at least one engine running (except the TAT probe – not heated on ground)
NORMAL is automatically set after takeoff

Question 2

What does the PROBE/WINDOW HEAT pushbutton do?

Answer 2

Manually activates the probe, and window heaters