Hotpoint Electric Oven will trip the Breaker

[SIZE=1]My Hotpoint electric oven was working for more than 35+ years. Recently, I turned off all my beakers at main panel and then when turned on again, the double pole breaker for Range and Oven (Wires from Electrical Drop In Range and Electrical Wall Oven go to the same 30Amps breaker)will trip right away. I did not turn ON the oven to cook anything. I removed the wires for the oven and left the wires for range to the breaker, the breaker will not trip and range working fine for more than a week. Please advice what could go wrong in the oven to trip the breaker. Thanks for your early response. You can contact me at 408-257-0956. Basant [/SIZE]