I recently blew a 25a fuse in a mini fridge which was soldered in. I currently don't have a 25a fuse to replace it with so what would happen if I used a 30a fuse instead?
As a Technician I strongly recommend that you go back with a 25amp fuse. The 30 may cause overload problems in other components and either damage it or start a fire.
You need to go get the correct amp fuse for the appliance, If you put a bigger amp in then it is designed to take if something starts to go out in the appliance it wont blow the fuse at the time it is suppose to and could ruin the appliance or catch on fire. Please do not use the larger amp.
the short answer is probably nothing. the fuse is oversized compared to the breaker feeding the circuit because when the motor starts a large inrush current flows for a short time before the load stabilizes. It would be nice to get the right fuse but in this case I doubt that it is a crisis as the circuit feeding the fridge is already fused at 15 or 20 amps.
It is never a good idea to replace the fuse with one that is higher rated. The fridge was designed to handle up to 25A and anything over that will do damage. You could melt wires and start a fire, or on a lesser note do damage to other parts in the fridge. Since this is a solder in fuse, then I would take the time to get the correct size fuse and solder that one in. You may do it and get away with it, but then again you may not. Is it really worth it? Get someone out and see why the fuse blew to begin with. Finally, if you do decide to replace the fuse with the 30A and that one blows, do not put another fuse in the device either get it fixed or get a new one.
I'm no expert, but I'd assume if for some reason your fridge drew more than 25 amps it'll likely get fried and your problem will get more expensive than just replacing a fuse. Although most fuses in homes are only 15amps, maybe 20so I'm not sure you'd ever get to your 25 or 30. Like I saidI'm no expert.
