Table 6-19. Fault Code 10 Or 21; Table 6-20. Fault Code 11; Table 6-21. Fault Code 12; Table 6-22. Fault Code 13 - Wayne Dresser Vista 1 Series Service Manual

Probable Cause
Reverse pulse.
1. Disc tension is not correct.
2. Debris holding diaphragm or actuator
open.
3. Defective diaphragm valve or propor-
tional flow control valve (Blender only).
4. Defective actuator (Non-Blender only).
Probable Cause
Corrupted option programming.
1. Computer found scrambled data in option
programming.
Probable Cause
Totals data was found corrupted and reset
to zero.
1. If error reoccurs-defective computer.
Probable Cause
Unit price data was found corrupted and
reset to zero.
1. If error reoccurs-defective computer.
February 1997

TABLE 6-19. FAULT CODE 10 OR 21.

Corrective Action
Check for missing wave washer on pulser shaft. Install as nec-
essary.
Repair as necessary.
Install diaphragm repair kit or replace flow control valve.
Replace the actuator.

TABLE 6-20. FAULT CODE 11.

Corrective Action
Check all option programming and set Option 99 to Data 03
to clear error. Cycling power will not clear this error.

TABLE 6-21. FAULT CODE 12.

Corrective Action
Replace computer assembly.

TABLE 6-22. FAULT CODE 13.

Corrective Action
Replace computer assembly.
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Part No. 920160 Rev A