I suppose expecting the manufacturers to help on a £90 safe was asking a bit much. Try:-
1) Pressing the 9V battery in hard and/or waggling it around a bit. If this is a PP3, the press-studs often lose their grip. Or you may have a dry joint between the holder and PCB. If so, a soldering iron applied to the battery contacts might remake the joint from outside. If you put an ohmmeter across the battery contacts (try the probes both ways round) you should see a few hundred or thousand ohms, not an open or short circuit. 2) Pressing the buttons hard. If they're the rubber-coated-with- graphite type like some calculators/TV remote controls, the graphite wears thin. But you've got to get the usual signs of life from the electronics first. 3) Forcing the handle round by extending it with a lever -- bit of pipe or pair of wood/metal bars clamped either side. 4) Getting a cold chisel under the safe enough to lift it 1mm off the joist to hacksaw the bolts might be better than levering it the whole way.Chris
Chris, I have just checked with a meter and the external battery terminals are open circuit. Sounds like you've been here before? You are suggesting a soldering iron on the terminals in case there's a bad joint on the inside. Worth a shot. Ger