Troubleshooting Diagnosis Chart
FUNCTION |
| POSSIBLE CAUSE | REMEDY |
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| 4.11 | Outer Barrier switch is out of | Check diagnostic LCD for Outer Barrier switch sta- |
4.00 |
| adjustment or defective. | tus. Barrier is down or barrier release pin partially |
LIFT WILL |
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| out. Adjust or replace switch as necessary. |
GO UP WITH | 4.12 | Full Out switch is not activated or |
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OVERRIDE | Check diagnostic LCD for Full Out switch status. | ||
SWITCH BUT |
| defective. | Adjust or replace switch as necessary. |
NOT WITH |
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4.13 | Check for | ||
PENDANT |
| properly. | tinuity of the switches. Verify SW1 and Door Open |
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| switches are functioning correctly. |
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5.00 | 5.11 | Hydraulic Down valve bad | Check for power on red “valve” wire from P.C. |
LIFT WILL | |||
NOT GO |
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| board to Down solenoid when pushing override |
DOWN WITH |
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| switch or |
OVERRIDE |
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| necessary. |
SWITCH |
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OR WITH | 5.12 | Dirty Down valve (clogged) | Flush valve by operating Up and Down manual |
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| override switches at same time for 4 to 5 seconds | |
PENDANT, |
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| several times. | |
GOES DOWN |
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SLOWLY OR |
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LIFT DRIFTS |
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DOWN BY |
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ITSELF |
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6.00 |
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| Check diagnostic LCD for Full Out switch status. |
LIFT WILL GO | 6.11 | Full Out switch out of adjustment or | |
DOWN WITH |
| defective. | Adjust or replace switch as necessary. |
OVERRIDE |
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SWITCH BUT | 6.12 | SW0 and/or Door Full Close switch- | Check switches for proper operation/adjustment. |
NOT WITH |
| es out of adjustment or defective. | Adjust or replace switch as necessary. |
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PENDANT |
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7.00 |
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LIFT WILL NOT | 7.11 Poor plug connections | Check harness connections A1, A2, B1 and B2 | |
EXTEND WITH |
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OVERRIDE | 7.12 | Bad In/Out motor | Check power at motor. Replace motor if necessary. |
SWITCH OR |
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7.13 Bad power and ground | See 1.00 | ||
PENDANT |
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| 8.11 | Stow Level switch out of adjust- | Check diagnostic LCD for Stow Level switch sta- |
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| ment or defective. | tus. Adjust or replace switch as necessary. |
8.00 | 8.12 | Platform is occupied or out of | Remove weight from platform. See Platform |
LIFT WILL NOT |
| calibration | Sense Calibration on page 5. |
STOW WITH | 8.13 | SW0 and/or Door Full Closed | Check switches for proper operation/adjustment. |
PENDANT |
| switches out of adjustment or | Adjust or replace switch as necessary. |
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| defective. |
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| 8.14 | Handrail Belt | Belt must be latched until platform is at stow level |
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| and must be unlatched before platform will stow. |
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