So I open up the cottage today after being closed since November. I have a central air conditioner with heat strips in it for spring and fall. Turn on heat and all is well. Then the 60 amp breaker trips. Never did it before since new, 15 years. The filter is brand spankin new. Even ran it without filter. After 10 minutes or so breaker blows. Several times. Before I call the man, should I switch out the breaker with a new one? That’s all I can do easily. Thermostat is 4 years old and seems to be working flawlessly. Any thoughts on breaker getting weak? Thanks, Ron