Audio Research 610T

I need help, my left amps running problem.
Turned on Standby mode , a minute later found breaker trip.
Reset breaker , power on and found my speaker humming , check V2 section all tubes glowing very strongly across the plate - very blueish ,
check bias V2- 0,
check bias on all V2 tubes, v4,v6,v8,v10,v12,v14,v16  and so on all read 120.
V1 ok.
I replaced V18 with new tube , same problem.
Need advise , thanks.
I have to call ARC on Monday.
Chris