There are several things that could be causing a washer not to drain. The first and most simple explanation would be a clog in the hose. Another reason could be the latch to the lid is not closing tightly and therefore not allowing the washer to spin and drain. It could also be a broken belt or pump.
You have to use toilet more
Washing machines should be trapped.
Check the large drain hose from the washer to the drain pipe when it is draining. You have to look see and find if the water leak is coming from the washer, drain hose, or a clogged up drain pipe. Can you you do me this small favor?. You may need a flash light and the agility to look behind the washer and get to where you can observe these three most common possible causes as they occur. Don't wait too long to find this problem or you may need some new flooring or sub flooring to go along with the washer repair.
it's clogged...
If your washer is the only place you are having drainage problems, it sounds like the drainage hose is stopped up. This can be due to a large collection of lint, or a sock or stocking (or other small item), could have gotten into the hose. Turn off the water and the power to the washer, then disconnect the drainage hose and clear it out, then see if that works.
There are multiple reasons why your washing machine might not drain. The drain line could be clogged with debris or even clothing, the pump pulley could be frozen, or the pipe that the washer drains into could be clogged.
lose washer
Without knowing more of your situation, let me speculate: The draining of the washer happens quickly. The draining water causes a vacuum in the line which then sucks the water out of the trap(s) in the other fixtures. This lack of water seal allows sewer gas to enter the house. This could be caused by an improperly installed fixture, one perhaps installed by a homeowner or Mr. FixIt that did not appreciate the necessity for properly venting a fixture. A quick fix might be a Studor Vent. These are not approved in all locations-check your codes.
Usually it is wax in the washer ports. Use s needle to clear the wax from the orifice.
coolant draining back into resivoir or possible air pocket
The first possibility would be a lack of water. followed by bad draining, or root diseases
Sounds like the wax gasket is leaking or a crack in the bowl. Is the floor dry.