There can be several reasons why your washer smells bad. One common culprit is the accumulation of bacteria and mould in the drum and other parts. This can happen if you frequently wash clothes at low temperatures or if you leave wet laundry sitting in the machine for too long. Another potential cause is a clogged or dirty drain hose, which can lead to stagnant water and unpleasant odours.
To deal with this problem, cleaning your washing machine regularly is important. Start by running an empty cycle with hot water and two cups of vinegar to kill bacteria and mold. You can also add baking soda to eliminate unpleasant odors. Also, remember to leave the door or lid of the washing machine open after each use to allow air circulation and prevent moisture build-up. Finally, remember to clean the detergent dispenser drawer and rubber gasket regularly, as detergent residue builds up in these areas, causing odors.