Ok I think I've got the posting of pics now so I'll put up a few 've been hanging on to. The ac drain has been plugged for a very long time.
fresh air intake for an erv
yes it was live
same rental house 2 year old diy install control board and ventor had to be replaced the cause was high voltage fluctuating from 30 to 130 volts likely a short circut or arc fault somewhere in the house, told the landlord no warrenty on repairs unless an electrician corrected the wiring in the house
found this ac at zero charge 1 year old, this was the first time i ever saw glue used on ac pipes at first i thought they just forgot to braze it.