Recently the freezer has been dropping down to -17C and we've been hitting the fast-freeze to bring it back to -22C.
Tonight it seems to have totally knackered.
Fridge was up to +8C and freezer up to -11C.
We took the front cover off and cleared the dust off the front right. Then we opened the back and the fan was running but a bit of dust on the motor.

Then, we turned off the whole thing at the plug to clean the fan blades (bad idea). Now the fridge/freezer won't turn back on... I don't think we damaged any connections on the motor.

I've sellotaped the door closed switch shut. Tried turning it on/off a couple of times.
Nothing seems to make it come back on. When I put my ear to it I can't hear anything going on inside it.

Temperatures are up to -6C for the freezer and +14C for the fridge.

Any help would be appreciated.