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8
Table 8.1 Fault codes
Code
88 & tt
89 through 96
98 & 99
8.5
Fault diagnosis
Table 8.2 Vehicle lift does not raise
Cause
No mains power.
Oil level too low.
Air in pump (only possible after the tank has
been empty).
Pressure relief valve opens because of
overloading.
Operation & maintenance instructions (Version H)
Faults
Possible fault
This is not a fault.
Internal control fault.
Internal control fault.
Solution
Indicates that the processor is resetting (e.g.
at start-up).
Turn mains switch off and on. Alert the
Technical Service if it persists.
Turn mains switch off and on. Alert the
Technical Service if it persists.
Solution
Have fault corrected by authorized
electrician.
Top up, see
7.3.1 'Lubrication instructions' on
page
63.
Operate the push buttons on the circuit board
inside the control box.
Steadily press buttons MS and M1 up to M4
at the same time for 1 minute.
• Vehicle lift overloaded.
• Pressure relief valve not properly adjusted;
have it adjusted by trained lift service
personnel.
73
SKY-200/250
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