Hi need to know what fuse to replace in venturer

Even though a fuse may look okay, it still might be bad or damaged. The only way to verify that it is good is to meter it out to see if you have continuity. If you do, then the problem lies deeper in the unit which is usually bad news. If the power surge did damage the unit and the fuse is good, then that fuse is either defective or rated to high for the device. once a power surge has entered a device, there are a number of different components that can be damaged at which point you do one of two things; Call a repair shop if the device is worth it or pitch it and buy a new one.