1. Turn off the power to the washer. This is typically done by unplugging the washer or turning off the circuit breaker that controls it.
2. Locate the fuse box. The fuse box is usually located on the back of the washer.
3. Find the fuse for the washer pump. The fuse for the washer pump is typically labeled "WP" or "Washer Pump."
4. Remove the blown fuse. Use a pair of needle-nose pliers to carefully remove the blown fuse from the fuse box.
5. Install a new fuse. Insert a new fuse of the same amperage rating into the fuse box.
6. Turn on the power to the washer. Test the washer pump to make sure that it is working properly.
If the washer pump is still not working, there may be another problem with the washer. You may need to call a qualified appliance repair technician to diagnose and repair the problem.