When you irrigate with hoses it is almost impossible to run enough hoses to keep the pump running continuously. A burned pressure switch and blown starting capacitor tells me your pump has been cycling on and off way too much.
Sometimes the capacitor and switch being bad will give a warning that you are about to cycle the pump to death. Other times the pump has already had oit by the time you find the bad switch and cap.
The only way to keep the pump from cycling itself to death with the old style "traditional pressure tank only system" is to ALWAYS run enough hoses to keep the pump from turning off while you are using water. Many people think the pump needs to cycle on/off, so the pump has time to rest. Nothing could be further from the truth. Pumps are made for continuous duty. They like to run 24/7. But they can only take so many on/off cycles before they are toast. People will tell me they always here the pump clicking on and off normally when they use hoses. The on/off cycling may be normal, but it is not good.
A Cycle Stop Valve will keep a pump running steady, even when you don't have enough hoses running. As long as you are using at least 1 GPM, the CSV will keep the pump from cycling to death.
I don't know how many times I have heard, "I was just running a little bit of water, because I did not want to hurt the pump". Without a CSV, running just a little bit of water is the worst thing you can do to a pump.
When you get the pump back to running, make sure it doesn't cycle on and off while you are running hoses, and you will get many years of life out of the pump.