Blowing Fuses

I got a Liang Audio 845 amp that's keep blowing fuses. What can I do? Can anyone suggest a repair place in the San Francisco bay area?

send it back to the factory
replace the tubes?
Replaced all the tubes already, still blowing fuses...
True Sound in Campell. Excellent.
Scott Frankland in San Jose.
He is one of two people that I will allow to touch my tube gearas he is thorough and extremely conscientious.
My Cary did that til I replaced the tubes. Since you already have, try taking the fuse (s)( that are being blown) out and putting it back in, then start the amp. It worked for me. Preamp on first then amp on. Amp off first then preamp off. Hope this helps, or get the new tubes tested for a short.
Is the amp pluged right into the wall? As if so you might want to try a voltage regulating power conditioner prior to paying for an un-needed service bill.