How do I remove the top cover from Worcester Bosch Highflow 400?

Something is leaking, I can hear the dripping, and yes there is water seeping down to the kitchen below.

I cant figure out how to pull the timer section forward to access the screws to remove the top cover... then I'll be able to see more down the back of the boiler to locate the leak, and figure who I need to call to fix. (It maybe a problem with the boiler or just the pipes)

There are two fixing points left and right of the panel onto the main outer casing but there are no screws in them.

The panel will not pull forward.

Any help....please!