this has been the oddest problem for me because not only does the air condensor flood my 94' miata passenger floor (purchased month ago)but also my 2000 dodge ram truck! on both vehicles have had hose blown out that lasts a short time...any more help or suggestions much appreciated....passengers get wet feet!
why passenger floor floods when air on on 1994 Mazda Miata MX-5
YOU EVAP FOR A/C DRAIN IS PLUGGED
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You may live in a place where trees drop a lot of debri and that stuff works its way into the HVAC housing and stops up your drains. Blowing the drain tubes out may be a temporary fix because it just pushes the gunk back into case and afer a short time it gathers back at drain area. Short of removing HVAC case to disassemble and clean may be only lasting solution. May try to remove drain tube hose and probe carefully with a tool in housing drain to try and pull debri out.
modify 'shop-vac' nozzle to suck the debris out of drain tube ? avoid dis-assembly? then determine the cause(like was mentioned -tree debris? Does a '94 have a cabin/pollen filter? May have been optional back then.