Why is My Dishwasher Not Draining?

Although it’s always irritating to open a dishwasher and realize the machine hasn’t emptied fully, don’t panic just yet. You might manage solve the fault by yourself, without having to call a repair person or purchase a new dishwasher.

Your dishwasher failing to drain could be induced by any number of issues a proportion of which can be simple to solve. So, before you call a dishwasher repair service here is a lineup of probable issues you may correct yourself. A number of which are not even related to the dishwasher itself.

Ensure the dishwasher wasn’t stopped mid-cycle

If you’re lucky the fact your dishwasher hasn’t drained may not be a fault at all. Instead, the cycle may have been interrupted.

The cycle may have been stopped mid-way for multiple of reasons. Little fingers pressing buttons, mistakenly pushing against the buttons, a power surge or opening the machine mid-cycle could all prevent the cycle from completing and mean your machine doesn’t drain.

If you believe this could be the circumstance, or you just want to be sure it’s not the issue start your machine again on a quick cycle.

A proportion dishwashers might have an empty cycle so it’s worth having a look at your instruction manual or checking online to make sure.

Check the disposal

If you have a waste disposal inspect this before you do anything else as a blocked waste disposal will block the machine from draining. Turn on the waste disposal with lots of water to check there are no blockages.

If you do uncover an issue drain un-blocker or a natural alternative can be sought after to remove the blockage and this may deal with the problem.

Inspect the sink for clogs

If you sink is emptying reluctantly this could indicate an issue with the drains rather than an issue with your machine.

If the sink is draining slowly you may try putting a little bicarb and white vinegar down the drain, leaving it for a few minutes, then rinsing it through with hot water.

A plunger may also be utilized to try and dislodge the obstruction.

This might be enough to let the appliance to empty so start a quick program now. If this hasn’t sorted the issue you can manually drain the dishwasher using a bowl and also a towel and check a few more likely causes.

At this point make sure you turn off the dishwasher to avoid electrocution.

If while you are carrying out one of these checks you believe you have found and solved the issue there is no need to continue to the next step. Just start an empty cycle to ensure your dishwasher is fixed.

Check and clean the filters

Any number of things could block the filters including popcorn, labels from jars, plastic film covers and smashed glass. Clear glass may also be hard to see if you aren’t looking for it.

Remove the filter and give it a thorough clean before putting it back in place. Not all machines have their filter in the same place so you could need to look at the manual for this.

Is the waste pipe blocked?

The next component to inspect is the drain hose. Stuck food, a kink in the hose or a crushed hose may all prevent your dishwasher from draining.

Contingent upon the location of the waste hose (generally the corrugated one) you might have the means to inspect it by means of lifting away the kick board alternatively you may be required to move the dishwasher away from under the counter.

Visually examine the pipe first to see if it has been squashed or kinked. You may have the means to fix these issues by hand which will most likely solve the issue, however, be aware that when this has occurred it is significantly more inclined to happen again so you might need to purchase a new hose.

If you are unable to find any obvious kinks or obstructions you may take off the waste hose from the dishwasher and blow through it to discover any blockages. Be sure to line the floor with newspaper or towels first as there might still be dirty water in the hose.

If you are unable to blow through the hose this could be the reason your dishwasher isn’t draining.

Remove the other end of the hose and give it a thorough flush through to remove the obstruction. If you are unable to remove the blockage or the hose is split or damaged invest in a brand-new one. If you could clear the obstruction then put the hose back and start a quick cycle to find out if you have repaired the fault.

You may also inspect where the hose attaches under your sink as well. This is a common point for debris to build up so if you do take off the waste hose give this point a good clean as well.

Inspect the drain valve

You could inspect the drain valve by hand to make sure it isn’t stopped working. The drain valve will generally be located at the base of the dishwasher on the valve bracket. Check your manual if you’re not sure.

Depressing the valve or wiggling it a bit will likely be adequate to find out if it’s seized. If you can see anything blocking it remove this. If you are unable to, this could be when you should ring a plumber unless you are undaunted by purchasing and replacing the part on your own.

Inspect your pump is not blocked

Your appliance pump uses impellers that can become obstructed by broken china or other debris. Check your impellers aren’t broken by removing the safety cover and making sure the impellers can rotate freely.

Listen to your dishwasher while it’s on

If the dishwasher doesn’t sound right your pump or motor could be faulty and need replacing.

Call a repair person

If you have been through the above list and the error remains, or you think the pump, pump valve or motor are broken, it could be the moment you need to call for help.

At least having tried to fix the problem yourself you have managed to avoid needing to pay a hefty repair fee for a clogged filter.

More Dishwasher Problems:

  • Dishwasher Being Loud
  • Dishwasher Not Turning On
  • Dishwasher Leaking
  • Dishwasher Not Drying
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