got a serial number?
if it is brand new it's a MEWP standard machine with the zapi system.
if it's a fault related to overweight then it should say that in the fault and sound an alarm and only allow it to lower.
Of course i'm not 100% sure w/o a serial number to verify.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.