Testing Ex display

[Petej999]

That isn't going to resolve the situation.

It might if the OP don't know what he is doing.

 

[loz2754]

You should be testing these lights without the bulb in place, as a Class II appliance. On most testers you can override the load check and continue on through the test sequence.

 

[Avo Mk8]

As per Lister's post #6
In the video you see an animated switch symbol to the left of the probe symbol at the bottom.
The manual says that switch only appears as a warning message:
"General Warning - Appliance open circuit or not switched on"
It seems the Megger is expecting to see a load, presumably in the automated Class ll setting I guess you are using.

If I were you I'd obtain from somewhere a filament bulb that fits the display lights you are testing, and see if that is a simple fix! Incandescent bulbs are not 'banned'. Shops with stock can still sell them, but now shops are not supposed to be buying in any more.