contract electricians always roll up wit one of those magic screwdrivers and start testin stuff
you ask them wots the problem and how long to fix it
the answer usually goes sommert like tis
well errm well umm err its like your 3.5milliamp diode triple circuit contact trip breaker has tripped out and took your main transformer and inverter unit with it , not to mention your 4 way pulsin contactor as well.
basicall that means the f,.,.,n fuse has gone mate and we are havin your pants down
sign here and we will crack on