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My Amana Washing Machine Model LWM433w Will Not Drain

An Amana washing machine model LWM433w should drain immediately after the agitation or wash cycle ends. If the washer won’t drain, it may be because the timer isn’t advancing to the drain cycle or there’s an obstruction in the drain line that prevents water from draining, among other potential problems. However frustrated you may be with your washer, put your frustrations aside until you see whether or not you can identify the problem and solve it. Perhaps you will be able to address the issue without having to rely on the expertise of an Amana washer service person.
  1. Timer Motor

    • The Amana LWM433w has a timer motor that advances the washing machine through each phase of a wash cycle. Check the timer to see whether or not it has progressed from agitation to drain. If it hasn’t, try moving the timer manually so it’s set on “Drain.” Wait about 30 seconds, and open the washer to see if water starts to drain from the washtub. If water begins to drain, the timer motor might be failing and should be replaced.

    Kinked or Obstructed Drain Line

    • If the drain line of your Amana washing machine becomes kinked or jammed with a lost clothing item or soap scum, water won’t drain from the washtub until the line is straightened or the obstruction is removed. First, check the drain hose to make sure it’s not twisted, and straighten the hose if necessary. Next, drain and empty the washing machine first before you can attempt to identify the obstruction. Consult your Amana washing machine’s operating manual for manual draining instructions. Remove the main panel of the washer to view the washtub and drain hose. Disconnect the drain hose so you can see the drain’s entry point. Reach into the entry point and pull out the clog to allow water to drain.

    Pump

    • An Amana washing machine has a pumping mechanism that starts when the washer advances to the wash cycle’s draining phase. The pumping mechanism has an arm that moves up and down to push water out of the washtub and down the washer’s drain. If the pump malfunctions, it won’t be able to eliminate the water in the washtub. Open the washing machine’s main panel and locate the pump. Refer to the diagram in the washing machine’s manual if you have trouble finding the pump. Move the arm up and down with your fingers. If the arm is difficult to move, change out the pump for a new one.

    Air Dome

    • You can find the air dome at the bottom of the outer washtub near the center. It measures the air pressure in the washtub, and from this information it alerts the timer when to advance to the next wash cycle. If the air dome stops working, it won’t be able to correctly gauge the air pressure in the washtub, and may not be able to notify the timer to advance. Due to the air dome’s positioning on an Amana washing machine, finding it requires that you completely dissemble the washtub. You’re probably better off contacting an Amana washer service person to evaluate the air dome and replace it if necessary.