Can you replace a blown fuse with a higher amp?
CAUTION! Never replace a blown fuse with a higher-amp fuse. Always replace the fuse with one with the specified amp rating. You may install the next-smaller-rated fuse to get you by in a pinch until you can purchase a replacement.
Is it OK to replace a 15-amp fuse with a 20 amp fuse?
The answer: It’s possible, but not advisable without an electrician evaluating the situation. You should never just upgrade from a 15-amp breaker to a 20-amp one just because the current one is tripping. Otherwise, you may burn your house down via electrical fire.
Can you replace a 15 amp fuse with a 25 amp fuse?
In general, NO. Replacing a fuse with a higher-amp fuse is a very bad idea and can lead to fires. Fuses (and circuit breakers) are rated such that they blow or trip before any part of the circuit gets to a dangerous current. Do not replace a blown fuse with one that has a higher amperage rating.
What do you do when your fuse blows?
Also helpful in a blown fuse situiation is an indication of when the power or rectifier tubes were last changed in the amp. Make a note of what tubes were changed and when and write this info on a piece of tape or a label-maker and attach somewhere on the amp as the finishing touch to the retube job.
What causes a fuse to blow on an amp?
If you’re amp has rectifier tubes, the next step is to determine if the blown fuse was caused by a failed rectifier tube or a power tube. If your amp doesn’t have rectifier tubes, you’re already halfway there and its time to zero in on a bad power tube!
What causes a power transformer to blow a fuse?
The amp blows fuses. This is a common problem. Usually it’s a shorted rectifier or power tube. Take all the tubes out of the amp, replace the fuse and turn on both switches. If the fuse blows then you probably have a shorted filter cap or in extreme circumstances, a blown power transformer.
Can a power surge cause a fuse to blow?
This is generally rare, BUT… trying more than 2 fuses without addressing your power or rectifier tubes can cause further damage to the amp. OK… you know that preamp tubes aren’t the cause of a blown fuse and you’re pretty sure it wasn’t a power surge so you’re ready to move on to the next steps.