I have a small bedroom unit air conditioner and it leaks from the bottom insidee the house. Can this be corrected?

Hello
First the unit needs to be on a tilt towards the outside.Check that the drain pan is clear of any debris.
Use a hose to flush out the drain hole located outside on the bottom of the unit.

This unit probably need to be cleaned. Im in St. louis MO and its above 100 degrees with a heat index of 116 if your area is experiencing this kind of heat as we are there may be nothing wrong at all A/C units are designed up to 95 degrees when it get hotter than that the units never shut off till night fall.

Make certain that the unit is tilted to ward the outside. that should solve it for ya ..

The AC your landlord installed is rated at 8000 btu which is way too small for 900 sq ft. You need at least a 15000 Btu Air conditioner and a 'well insulated' house to be cool.
A good rule of thumb in the AC business says you need 1 ton (12000 btu) of Air conditioning for every 600 sq feet (if the house is well insulated) - if not - then you will need 1 ton (12000 btu) for every 400 sq feet.
So, if you have 900 sq feet and the house is well insulated you should have at least a 15000 btu unit.
If it's not well insulated you will need 24,000 btu.

Over here in my neck of the woods an apartment one bedroom would have a 1.5 ton unit, a 2 bedroom house 2 to 2.5 tons a 3 or 4 bedroom home would be a 3 ton or 3.5 ton. Without numbers no one can tell exactly what you have there. Figured i could give you an idea. If you have 8 foot walls go by a ton for each bed room in the house.

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For every 500 sq. ft. house or a 1-bedroom size new house you need 1-ton of cool . An old house you need a ton worth of cooling for every 400 sq. ft. house or a 1-ton per 1 bedroom size house.

All air conditioners drain water.

if you are saying that your home ac unit is leaking refrisgerant and it is your central air system they have a dye that can be introduced into the system throught its refridgerant intake , if it is a small window unit the odds of fixing it inexpensively are minimal

Make sure that you are not running the unit on low fan speed. In the warmer months of the year, this will often cause the unit to freeze up due to the lack of air flow through the evaporator. If you are running on high and it is still freezing, then you possibly have a freon leak in the system. The brisk airs are notorious for the capillary tubes in the upper unit rubbing together and developing a small leak. The problem is usually where the two small tubes enter the evaporator housing. Remove the cover and pull the two small lines apart, damage should be apparent if there is any. If not, you may have developed a leak elsewhere and need to have someone check out the system.

Hope this helps,

Jeff

there could be an obstruction in the bottom.remove it from the window and remove the case.check for anything obstructing water flow (condensation) to the outside.