User's Manual

Chapter 3 – Operating Instructions
SKY899 Pilot’s Guide
3-8
Preliminary
If you see a SKY899 Failed screen, respond as follows:
1. If the B arometric A ltitude I nput error ( #20 ) occurs, make
sure the barometric altitude source has been turned on and
given enough time to warm up.
Most #20 errors are due to the failure of equipment external
to the
SKY899.
2. If any other error occurs, or if error #20 remains after 5
minutes, write down the error number and description; then,
if you don’t have a
S tormscope WX-1000 , skip to step 9 .
3. If the
SKYWATCH / S tormscope mode switch is in the
S tormscope position, switch it into the SKYWATCH position.
4. Press the TEST button.
The resulting self test may provide another error code to
write down.
5. If you see MSG or
MSG
on the F ailed screen, press the
message button and write down the degraded items you see
listed on the message screen.
6. Press the
EXIT button to return to the F ailed screen.
7. Switch into
S tormscope mode using the SKYWATCH /
S tormscope mode switch.
8. Press any key or wait 10 seconds to remove the SKY899
F ailed screen.
The Stormscope screen is displayed.
9. Press the TEST button.
The resulting self test may provide another error code to
write down.
10. If you see MSG or
MSG
on the F ailed screen, press the
message button and write down the degraded items you
see listed on the message screen.
11. Press the
EXIT button to return to the F ailed screen.
12. Remove power from the SKY899 at the circuit breaker.
Respond to a Failed System