You don't do it. You call an electrician and have the electrician do it.
If the breaker box is not accessible, that's a building code violation, and you have bigger problems than just changing an outlet.
If the outlet is in a building that is anything other than a single-family home which you own personally, you have absolutely no business touching the wiring under any circumstances. A faulty installation could put other tenants or future tenants at risk of fire or shock. Ask the owner to send an electrician to make the repair.
If the outlet is in your own home and you don't have access to the circuit breakers because there is stuff in the way, you need to clear it away. If you don't know where the breaker box is, call an electrician to make the repair for you and have the electrician show you where it is for future reference. If you don't have a breaker panel, call an electrician immediately because your wiring is unsafe.
You probably mean to change it to a 240 V outlet... either case, you'll need to run a new wire and install a new breaker.
Circuit breakers can degrade over time but it would be better to get a competant electrician to do it. It might also mean you have too many things plugged into one outlet. Sometimes one circuit breaker may protect several outlets so it might be tripping because of a change in another outlet. ELECTRICTY IS DANGEROUS!!!! Don't do it yourself.
If it's a GFCI receptacle and the button is not resetting then change the GFCI outlet.
If the GFI outlet is tripped (the outlet, not the breaker) then it is telling you there is a ground fault which must be fixed. If the GFI outlet is not tripped, and the breaker is not tripped, but it is still not providing power, then you have a loose connection or a wiring error.
You need to remove everything connected to the breaker and see if it still trips. If it does it is in the wiring or possibly a bad breaker. Disconnect load from breaker and see if it still trips. If so replace the breaker. If it still trips and is not the breaker then you will have to start pulling each outlet from wall and checking after disconnecting each outlet.
If it is a 30 amp breaker then it is a 240 volt outlet.
Not if the GFCI breaker is supplying the circuit you are wanting to put the GFCI receptacle into.
It means the breaker has been tripped. There are two possible ways to reset it - some have a button on the outlet (there may be several outlets on one circuit, so you may have to look around) the other is the main breaker in your breaker box. You'll need to find a reset the breaker.
no. the breaker is 40amps.fire hazard
The plugs are different. The prongs are straight on one and angled on the other. The wire and breaker are the same. You can either change the outlet or the cord.
It means the breaker has been tripped. There are two possible ways to reset it - some have a button on the outlet (there may be several outlets on one circuit, so you may have to look around) the other is the main breaker in your breaker box. You'll need to find a reset the breaker.
If you can plug the fridge into another outlet and it comes on, then the issue is either a bad outlet connection or the circut breaker may be going out and needs replacement. Try the fridge on another outlet 1st. If it trips that one too then there is a short in your fridge.