TROUBLESHOOTING USING DVR FAULT CODES - Continued
CORRECTIVE ACTION - Continued
The DVR detects that one of the sense inputs is open or shorted to another input.
Loss of Sensing
Inspect wiring and verify continuity between TB1 and terminals
A3-20, A3-22, and A3-24 of DVR per FO-3 and FO-4.
b. If the problem is not resolved, replace the DVR (WP 0041).
Verify the problem is resolved.
The DVR detects that there is no AC frequency present for 200 mS while the measured voltage is
greater than 50% of nominal.
Check fuses F1, F2, or F3 per FO-1, sheet 4 and FO-3, sheet 1.
Replace fuses F1, F2, or F3, as required (WP 0054).