Home Forums General Discussion Technical Questions IMEM AL2 Controller Fault Codes

Hi

We have a IMEM Lift (MRL) that has the AL2 controller on it.

We have the lift intermittently crashing out as it comes into the lowest landing floor.
The fault code that starts the crash stop is 87.
Unfortunately the list of codes in the on-site manual do not list this or another code its tripping which is 23.
If anyone has a complete list of fault codes for the Imem AL2 controller, that would be a great help thanks

23. Overheating. NOTE: this fault only appears on the main board’s fault history, not on the displays

87. Safety circuit open before led PC (AL1 board)