D-Lab1 docking problem

[AGFAMAN]

My Agfa D.Lab 1 has a docking problem during the docking of the Paper Processor kit (chemical)...

Is it possible that lab generates the error due to the defective switch (located at the top of the developer tank)?

Thank very much in advance.

[flexxy]

I guess you know that there are two level sensors in the replenisher tanks.
1- for LOW level
1- for a FULL level.

I recommend paying attention to the FULL level sensor.
Looks like it the sensor simply needs cleaning.