RT Turn Up: DLP-503
363-205-401
Page 2 of 2
Issue 7, March 1997
9.
Press FAN TEST button on FCU.
Response:
Fans should operate while button is pressed.
10. Do fans operate while FAN TEST button is pressed?
If YES, then STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If NO, then continue with Step 11.
11. Does
−
48V FAN H or
−
48V FAN L fuse on BFU blow again?
If YES, then continue with Step 12.
If NO, then proceed to Step 13.
12. Check wiring using SD-7C118-01 or SD-7C118-02 (FTTH). Repeat procedure
from Step 3 after locating and correcting trouble.
13. Replace FCU.
14. Press FAN TEST button on FCU.
Response:
Fans should operate while button is pressed.
15. Do fans operate while FAN TEST button is pressed?
If YES, then STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If NO, then continue with Step 16.
16. Replace FCU with FCU removed previously.
17. Is FAN ALARM indicator on fan shelf lighted?
If YES, then continue with Step 18.
If NO, then proceed to Step 19.
18. Replace fan shelf and repeat from Step 3.
19. Check wiring to fan shelf per SD-7C118-01 or SD-7C118-02 (FTTH). Repeat
procedure from Step 3 after locating and correcting trouble.