Re: Freezer box ice problem
You would still need to turn it off before defrosting it.
It should have a thermostat control on it somewhere inside.
If you use a hair dryer and it is not turned off you will increase the pressure in the system and you could blow the seals in the compressor.
Do not use any thing to chip away the ice as you could puncture the evaporator and then the fridge would be beyond economical repair.
It would be best just to turn the thermostat control if you can find it to zero / 0 to turn it off or a mains switch to turn the power off, empty the fridge and icebox and let it defrost with the doors open.
Make sure you have towels down and put a washing up bowl in the fridge to soak up the water.
Bob