This might sound stupid however have you checked the child lock isn't on. Usually that.
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If not it might be power to the motor so check the fuse in the fuse box. Internal fuse box it's in CB1 and it's a 25amp. Drivers door is in engine compartment and thats 37 and it's a 30 amp
Any more will be invasive and panels have to come off but hopefully one of the above will fix it.