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51
February 1997
Part No. 920160 Rev A
TABLE 6-26. FAULT CODE 51.
Probable Cause
Corrective Action
Blend ratio error exceeded programmed
limits.
Programming Option 52 should be set at 2% and Option 53
should be set at 1.2 gallons. Reset if necessary.
1.
Flow restricted on one end grade.
Observe the low and high meters while dispensing to deter-
mine which grade is restricted. Verify any blend inaccuracy
using electronic totals. Check all valves and flow tubing for
obstructions. Clean strainer and change filter.
2.
Defective solenoid drive board.
Check that the DS1 LED on the drive board stays lit during
the sale and the DS2 LED blinks about every two seconds. If
either of these conditions fails, replace the Solenoid Drive
Board.
3.
Faulty wire harness connected to coil.
Check the wire harness connections to the valve coil wires
and the harness into J3 on the solenoid drive board. Verify the
voltage to the valve coils at 24 VDC when enabled. Replace
wire harness as necessary.
4.
Defective proportional flow control valve.
Replace proportional flow control valve.
5.
Defective computer.
Replace computer assembly.
TABLE 6-27. FAULT CODE 54.
Probable Cause
Corrective Action
(Blender Only) Communication failure
between computer and blender
solenoid drive board.
1.
Defective Solenoid Drive Board.
Cycle power to dispenser. Replace solenoid drive board if
error continues to occur.
2.
Defective Computer assembly.
Replace computer assembly.
Содержание Dresser Vista 1 Series
Страница 1: ...1 Vista Series Blending and Non Blending Remote Dispensers SERVICE ...
Страница 4: ...Part No 920160 Rev A February 1997 ...
Страница 10: ...viii Part No 920160 Rev A February 1997 ...
Страница 12: ...2 Part No 920160 Rev A February 1997 ...
Страница 22: ...12 Part No 920160 Rev A February 1997 ...
Страница 38: ...28 Part No 920160 Rev A February 1997 ...
Страница 62: ...52 Part No 920160 Rev A February 1997 ...
Страница 76: ...66 Part No 920160 Rev A February 1997 FIGURE 7 8 NOZZLE BOOT ASSEMBLY LIFT TO START ...
Страница 77: ...67 February 1997 Part No 920160 Rev A FIGURE 7 9 NOZZLE BOOT ASSEMBLY PUSH TO START ...
Страница 83: ...73 February 1997 Part No 920160 Rev A APPENDIX A TROUBLESHOOTING FLOWCHARTS ...
Страница 110: ...100 Part No 920160 Rev A February 1997 ...
Страница 111: ...101 February 1997 Part No 920160 Rev A APPENDIX B SERVICE INFORMATION AND CONNECTOR PIN OUTS ...
Страница 128: ...118 Part No 920160 Rev A February 1997 FIGURE B 20 ISB ASSEMBLY CONNECTION PINOUTS FOR MGD Refer to Table B 1 ...
Страница 134: ...124 Part No 920160 Rev A February 1997 ...
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