Anyone know how to fix electric recliners?

We bought a second hand recliner sofa. Both ends independently recline, with completely separate mechanisms, cables, plugs, etc. One end (the end we use all the time) reclined, and then wouldn't unrecline. The button makes its little mechanical click, but nothing else happens. No whir, no groan, no movement. The other end (which tends not to get used) is fine.

The LED on the adapter box for the working end is solid. It's a dim flicker for the non-working end. We have tried swapping power cables and adapter boxes. The result is the same, with the same end not working. So it must be something inside the sofa itself.

It did this last week. We switched it off at the wall for a while, then switched it on. It spent a good ten minutes doing the vague flicker with the occasional few seconds of solid bright LED. Eventually, the light stayed on and the sofa started working again. It's not coming back to life this time.

So, any tips? How do we get at underneath? It weighs a tonne and won't be easy to turn over in its current reclined position. What do we look for once we're there? Would it be feasible to move a part from the working end to a) check if that's the bit that has failed or b) switch which end works? What should we be wary of?

#repair #fedihelp #fixingstuff