I came out tonight due to the furnace on the main level next to the bar not working. The circuit in question is panel “A” circuit number 1&3 and is a 2p60amp breaker and when I used my meter to test for voltage I noticed that L1 would drop then come back on. I went to the disconnect that is located in the closet and tested line side and found 240v and the unit came on then went back off. I determined that the breaker was faulty,t so I supplied and installed a new breaker and tested power on both ends and when i put back together the unit came back on.