I am trying to repair a fill valve fuse in my maytag washer.
stay with the recomended fuse size. sounds like the solinoid valve went bad. the valve will have two wires going to it disconnect the wires and use a conductivity meter from wire to wire. if you have conductivity the valve is good. if not replace the valve.
If there's a power spike or overload, you could melt your insulation and/or start a fire. You should never overfuse a circuit. Engineering margins are usually between 50% and 100% above rated value. 500% would be dangerous.
You will cause other damage if the problem wasn't just a weak fuse.
If you use a higher rated amp fuse I think it could catch on fire . Each wire size is only able to carry a given amount of amps. The bigger the wire the more amps and the smaller the wire size number. #14 wire 15amp fuse #12wire20amp fuse #10wire30amp fuse #8 wire40amp fuse. The fuse acts as safety feacher incase the amps are exceeded. The fuse blowes before the isulations on the wire meltes and causes a short .
The one amp fuse is there to limit the current to 1 amp. Using a 5 amp fuse will allow 5 amps to flow in a circuit designed for 1 amp. This current over the designed max current can cause damage to the components in the circuit and could also cause the components to overheat and start a fire. DON'T DO IT.