Floor is iced over on my hisense upright freezer, can't get bottom drawer out

Something here should cover your problem.
side by side refrigerator ice on freezer floor YouTube

You might be well served with a general defrost of the unit. But before you do, make sure that the mounting screws on the ice maker are fully in. Then if so, warm the lower surface of the ice maker where cubes are ejected with a hair dryer for a minute or two (medium not high). It could be that extraneous ice is catching the cubes. What does it feel like to the hand?

the drain tube is most likely clogged. if the lower vent is freezing up there is no way to confirm because it is covered with ice. the reason water leaks onto the floor is, the refrigerator goes into defrost, frost melts and runs down the ice to the door. use a hair dryer to remove all ice, then use hot water to check drain. drain tube may be up to a foot long and may have a trap. you may have to go in through the back to gain access to the drain

We too have this 2005 model and have to remove ice at the bottom each month....solution...buy a new freezer before we lose all contents.Looking at Amana...high ratings and few complaints

just do a full defrost(DO NOT USE SCRAPERS/STEAM)and dry after.check door seals sit flush to cabinet.and restart.

i could be wrong, but, look along the bottom of the door to see if the seal is tight to the frame......if there is an air gap it is causing the floor to freeze the cold air....

remove all food from fridge and take it outside. leave it outside until ice is melted. this is the procedure and i have to do it every day im a Refrigeration Mechanic.

Is the ice tray that fills level? this may be over flow from the tray filling sequence

Defected DEFROST HEATER can cause frost build up on the panel at the back of the freezer,and freezer stop cooling and ice frozen on unit so air could not flow to refrigerator side.Water will coming out caused of unbalanced freezing,and causing the flooding of water in the floor. You must change this defroster heater assembly so it will works normal again..


Hope this may help;

Regards,
VOTIT

Sounds like a defrost system problem. Could be related to defrost timer, heaters or defrost thermostat. Have it serviced.