A long day at Autocaravanas Tambo!
The 2nd replacement bulb above the drop down bed had not arrived, and then they could not trace the cable run (the Burstner Manual says that Converters can run the bed wiring anywhere, so good hunting ...), so, rather than waste chargeable time, they ran a new cable from the EBL 99 with a dedicated 7.5 amp
fuse, wired inline; the bed lights now have their own circuit, and, if there is another problem, the new
fuse is easily accessible, so no more scraped knuckles delving below the passenger seat!
Another problem then surfaced; 3 of the LEDs on the external light over the door had blown (too much of a coincidence for it not to be connected to the water ingress problem and the use of a pressure washer by the Valeters). So Tambo fitted a new, much brighter, external light. Thought that was job done, subject to popping back on the return leg to have the 2nd bedroom light fitted without charge.
Reversed out of workshop and began to reassemble the bed area, and repack the Van, after chucking everything in the shower and kitchen to leave the bed work area as clear as possible.
Went to raise the bed to 'driving height' and it coughed a wee bit, reached about 80% height, and then dropped like a stone to the lowest setting. Lots of checking of the new wiring and the bed switch and testing of the bed raise/lower function. Sometimes it would raise OK, then lower OK, but then a repeat would cause the bed to drop during the raise.
If the bed was left for a few (5) minutes, it would raise successfully, if somewhat slowly. Conclusion was that the repeated raising/lowering had hammered the Leisure
Battery and the 5 minutes rests were just about adequate to enable to raise the bed successfully.
Stayed on Benicarlo Aire, 2.5 miles away, in case the problem recurred ( and too late to drive to Moncofa Aire). Bed lowered OK, and raised OK this morning, but the Leisure
Battery is going to need a decent recharge run (or a Viagra tablet) to be able to get it up and down successfully

.
TBF, the bed is raised and lowered only once each day, and asking the
battery to do 2 weeks work in 3 hours, after only 20Wh of
solar input, because the sun only shone whilst the Van was inside the workshop, was not a good idea. Hey ho.
Steve