Page 20
FUNCTION
POSSIBLE CAUSE
REMEDY
4.11 FULL OUT diagnostic LED
not illuminated
4.12 Hand-held pendant not working
properly
4.13 See 12.0
4.00
LIFT WILL
GO UP WITH
OVERRIDE
SWITCH BUT
NOT WITH
HAND-HELD
PENDANT
Check full out switch for proper operation/ad-
justment. Replace or adjust as necessary.
Check for UP diagnostic LED when hitting UP
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necessary.
5.11 Hydraulic down valve bad
5.12 Dirty down valve (clogged)
5.00
LIFT WILL
NOT GO
DOWN WITH
MANUAL
OVERRIDE
OR WITH
HAND-HELD
PENDANT OR
GOES DOWN
SLOWLY
OR DRIFTS
DOWN BY
ITSELF
Check for power on valve ”T” wire going to so-
lenoid when pushing manual override or remote
button. Replace if necessary.
Flush valve by pushing manual override up and
down buttons at same time for 4 to 5 seconds
several times.
Troubleshooting Diagnosis Chart
6.00
LIFT WILL GO
DOWN WITH
OVERRIDE
BUT NOT WITH
HAND-HELD
PENDANT
6.11 FULL OUT diagnostic LED not
illuminated.
6.12 See 12.0
Check for proper operation of Full Out switch
with diagnostic LED. Replace or adjust switch
as necessary.
7.00
LIFT WILL NOT
GO OUT WITH
OVERRIDE OR
HAND-HELD
PENDANT
7.11 Defective circuit breaker
7.12 No power on terminal 8
7.13 Interlock circuit incomplete
7.14 Poor plug connections
7.15 Bad in/out motor
7.16 Bad power and ground
Reset or replace if necessary.
Check vehicle door full open switch and wiring.
Verify interlock installation
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Check power at motor. Replace motor if neces-
sary.
See 1.00
3.11 Up Solenoid
3.12 Bad power and ground
3.00
PUMP DOES
NOT RUN
WITH
MANUAL
OVERRIDE
OR
HAND-HELD
PENDANT
Check for power on pump “T” wire going to
solenoid.
See 1.00