The fuses are attached to the sides of the solenoid switch which itself is generally bolted to the back of the power distribution panel. the fuses don't blow that frequently, a more likely issue is the solenoid switch itself freezes up. It is a momentary energized relay so it does not use current once it is set or once it is released. It uses an articulating shaft and notch to hold it in the "store" position and a spring for the "use" position. It may need a couple modest raps with a rubber or plastic mallet to free it.
You can tell if the fuses are bad if you someone cycles the use store switch and you listen for the click sounds of the magnetic actuator. You may have to get close to the distribution panel to hear it. If there is no sound at all verify your batteries are good. If they are good locate and gain access to the solenoid. It looks like this:
https://www.amazon.com/INTELLITEC-01...3439679&sr=8-3
Note the fuses mounted on each side? Now check for voltage to ground at the solenoid. If there is voltage and no clicking sound, one of the fuses may be blown.
If it clicks when energized by the switch, but does not engage and pass power it is frozen, time for the mallet. Once it is free again it should be good for 10-100 more cycles. But do cycle it 5 or so times just to get in totally free.