What to Do if Your Dishwasher Displays a Water Tap Error


You are about to wash dishes, and immediately after you start your dishwasher, the control panel reads ‘WATER TAP,’ and the unit fails to work. It’s frustrating, but also confusing. What does it mean?

The water tap error means that the amount of water supplied to the dishwasher is insufficient. To resolve this problem, ensure that the supply hose is clear, clean the filters properly and maximize the water pressure directly from the tap.

Different dishwasher brands have a self-diagnosis system that helps report and display any error whenever the appliance has a water supply fault.

The common problems that result from a water tap error in dishwashers are obstruction in the supply hose, filter blockages, broken parts, and insufficient water pressure.

Below this article, we will discuss further how to identify and resolve the water tap error in different dishwasher brands.

What Does It Mean When a Dishwasher Shows a Water Tap Error?

Dishwashers display water tap errors when there is insufficient water supply. A malfunction occurs in the unit, and therefore it fails to begin the cycle.

The dishwasher should receive an adequate amount of water to function correctly.

Each dishwasher brand displays the water tap error differently. There are several reasons why your dishwasher may be experiencing insufficient water pressure, and they include:

  • The inlet water valve is not on.
  • Obstruction in the supply hose
  • Some parts of the appliance might have breakage leading to a malfunction
  • Clogged filters
  • Low water pressure from the tap

You can resolve the water tap error by yourself with some light troubleshooting, and if you’re lucky you will not need to contact a technician.

First, you should diagnose the exact problem to find a suitable solution depending on your dishwasher brand.

What Does it Mean When Different Dishwasher Brands Display a Water Tap Error?

Most modern dishwasher brands are known for their high-end performance. The manufacturers equip dishwashers with sensors that sense any malfunction in the unit. They display an error code depending on the nature of the problem.

Below is how clear the water tap error is in different dishwasher brands.

Samsung Dishwasher Says Water Supply

The water tap error is one of the most common causes of a malfunction in Samsung dishwashers. This error code indicates an issue that has to do with the water supply.

The flow-meter does not sense a proper water filling procedure.

Water does not fill the dishwasher, and the unit cannot start a cycle. Therefore the buzzer starts beeping, and the appliance displays the water tap error.

The causes for this error in a Samsung dishwasher are:

  • Faulty water pipes
  • The water pressure is too low
  • Closure or breaking of the water inlet valve
  • Blocked filters
  • A possible restriction on the water intake

How to Fix it

  1. Check for any jamming or obstruction in the water pipes and the water inlet valve.
  2. Remove the filters following instructions from the Samsung dishwasher manual and clean them.
  3. Ensure that the tap supplying the dishwasher with water is open and at a moderate pressure, not too high and not too low. Check the water pressure directly using a bucket.
  4. Check and ensure that the inlet valves for hot and cold water are on their correct faucets.
  5. If you cannot troubleshoot the problem causing the error, contact Samsung online and ask for support from an expert.

LG Dishwasher says Water tap

LG dishwashers display the water tap error when the water directed to the unit fills too slowly or does not fill at all. The water inlet valve requires an adequate supply of water to function correctly.

Other causes of the water tap error in an LG unit include:

  • Low water pressure from the supply
  • Bending of the supply hoses
  • Clogging of the inlet filters

How to Fix it

Check for any defects on the water inlet line. In case of a blockage, you will need to clean the inlet line. If it has a tear, the water inlet line will need a replacement.

  1. Any debris present on the filter will cause clogging. You should remove the filters and clean them.
  2. Ensure the supply hose does not have bands or kinks.
  3. According to LG, the error might persist, and you might need to contact their repair technician.

Bosch Dishwasher Says Check Water

When the tap indicator of Bosch dishwashers lights up, it automatically indicates a water tap error in the unit. The dishwasher fails to work due to an insufficient water supply.

The causes of the water tap error in Bosch dishwashers are as follows:

  • Blocking of the wastewater pump
  • Blockage of the filters at the inlet
  • Turning off the water tap
  • Clogging of the supply hose
  • Failing to close the pump cover tightly

How to Fix it

  1. Remove the filters in the inlet and clean them. If you encounter difficulties removing the filters, check the Bosch dishwasher manual for the removal instructions.
  2. Check whether the supply hose is kinky or bent in any way and fix it accordingly.
  3. Clean the wastewater pump using baking soda or white vinegar to dislodge the blockage.
  4. Clean the filters and supply the hose with hot water to dissolve detergent build-up.
  5. Bosch Company recommends you book an appointment with their repair services so that they can fix your dishwasher if you do not troubleshoot the issue by yourself.

Ariston Dishwasher Says No Water Open Tub

Ariston and Hotpoint dishwashers display similar fault codes because they are both made by  Merloni Group.

The water tap error occurs in the Ariston dishwasher when the water intake into the unit is prolonged. This error causes the team to break down temporarily.

The water tap error occurs due to:

  • Breakage of the filling valve
  • Clogging of the filters
  • Blockage of the water inlet valve

How to Fix it

  1. In case of a breakage in the filling valve, water does not enter the dishwasher at all. To fix this, you will need to check the operability of the filling valve using a multimeter.

    If it is highly damaged, it will require a replacement.
  2. The water inlet valve blockage occurs due to obstruction by foreign materials, like food particles. You will have to remove the inlet valve located inside the dishwasher and clean it.
  3. Clogging of the filters is resolved by simply removing the filters and cleaning them.
  4. The Merloni Group’s suggestion in case of a water tap error is to ensure that the unit is off the power supply when fixing it. In extreme cases, you should contact a repair expert.

Your dishwasher may stop working with a water tap error until you resolve the issue. This guide will assist you in diagnosing and clearing the water tap error.

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Robin

Robin is in his 30s and still enjoys the things he enjoyed as a teenager. He has studied nutrition, personal training, coaching, and cooking. He has an ever-growing interest in the art of cooking the best burger in the world. Thankfully, he also loves going to the gym.

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