How to Fix: Dishwasher Error Code E2

Dishwashers are now a crucial part of many households, designed to manage frequent usage and alleviate you from one of the most unpleasant household tasks.

Seeing an Error Code E2 flashing on the LED display can be exasperating when you turn on the machine.

If you encounter the dishwasher Error Code E2, it may be due to low power supply, water inlet malfunction, pump blockage, or wiring issues; to reset the dishwasher, turn off the power and water supply before turning them back on.

If the previous solution does not resolve the issue, inspect the pipes for any bends or twists, clear out any obstructions in the filters, and substitute any faulty sensors.

If you have come across the error code E2 or if you are unsure about how to proceed, it is essential to perform diagnostic tests to identify the root cause of the issue.

We will examine the reason behind the E2 error code on your particular brand and explore potential remedies to resolve it.

What To Do If Your Dishwasher Displays Error Code E2

Dishwashers are equipped with sensors that detect any anomalies that may hinder their normal functioning, and most of these problems can be easily resolved.

On the other hand, some solutions demand expertise in the field.

Your dishwasher will function properly as long as it has an adequate power supply.

At times, a power surge may happen during the dishwasher’s operation.

The E2 error code occurs when the dishwasher experiences difficulty in functioning correctly due to inadequate power supply.

It is important to check your power supply before troubleshooting any issues with your dishwasher, as there could be an electrical problem with the main power supply to your home.

If you encounter this issue, power off the dishwasher and disconnect the electrical supply.

To prevent damaging your unit, it is advisable to postpone washing your dirty dishes until the electricity supply stabilizes.

How to Fix Error Code E3 on Different Dishwasher Brands

1. Samsung Dishwasher

When the drain filter of a Samsung dishwasher becomes clogged, it triggers an E2 error and causes LED lights to flash.

One possible reason for the Dishwasher Error Code E2 is a clog in the drain hose, or it could be caused by a bend that is obstructing water flow out of the appliance.

If the dishwasher is taking an unusually long time to drain, it indicates that this is the problem, which corresponds to the Dishwasher Error Code E2.

Obstructions in the drain hoses typically happen at the point where the hose links to the primary household drain line and at the junction where the hose connects to the garbage disposer.

Obstructions in the dishwasher causing Error Code E2 may result from lint or tiny fragments that have detached from kitchenware.

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How To Fix

Checking the dishwasher’s drainage system is a simple task for users, and they can easily empty the tank if it is full.

Located near the filter plug is an emergency drain pipe.

Prior to starting, position an absorbent cloth to trap any remaining water from the dishwasher.

Commence by inspecting the drain filter located behind a small door on the front of the machine.

To remove the filter, open the dishwasher door, unscrew the cork, and carefully pull it outwards.

Typically, the drain filter in Samsung dishwashers is located at the bottom and can be accessed by following these steps:

  • To expose the filter, take out the dish basket located at the bottom of the unit.
  • Check for any blockage.
  • When you identify an obstruction, take it out of the filter.

Afterward, inspect the sewer drain, separate the hose from it, and pour it into a container that can collect liquid such as a basin.

If water is coming out of the pipe, it could indicate that the sewer system is obstructed.

It is common to complete the entire process of fixing a dishwasher error code E2 only to discover that the issue was simply a kink in the drain hose, which is why it is recommended to inspect the length of the pipe initially.

Prior to inspecting the drain filter, it is recommended to first address any unwanted loops.

After fixing the problem, restore everything to its original position, then plug in the dishwasher and choose a spin setting. It is not necessary to run a full cycle; a brief one will suffice for testing purposes.

Ultimately, your goal is to evaluate the drainage system and not any other potential issues with the dishwasher’s operation.

It is important that the drum empties smoothly and within the recommended time when choosing the drain settings.

2. Bosch Dishwasher

It is recommended to connect Bosch dishwashers to a cold water supply, but occasionally people may switch to using hot water, particularly when cleaning dishes with heavy grease buildup.

Using hot water to remove oils and food residues from your dishwasher may be causing damage.

Most dishwashers are equipped with an internal heating mechanism that warms up the water during the wash cycle. It is not recommended to connect the dishwasher to a hot water supply as this could cause damage to the unit in the long run.

If you see the E2 error code on your dishwasher, it could indicate that there is an issue with water flow. This may mean that water is not entering the machine or that it is entering at a slower rate than usual.

How To Fix

Before fixing the Dishwasher Error Code E2, it is recommended to go through the installation manual of the product to determine whether it is safe to connect your machine with the hot water inlet.

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Seek the assistance of a specialist in dishwasher maintenance to evaluate the severity of the harm caused by the hot water inlet.

Make sure that the flow valve connected to the pipe is turned on and examine the inlet hose for any twists or bends.

3. Bosch Dishwasher

If your Bosch dishwasher displays the E3 error code, it means that the temperature sensor is not working correctly, and the auto-stop protection feature has been activated.

If the temperature sensor (also known as thermistor) stops working correctly, it can impact the performance of the heating element.

Even if there are no visible power supply issues, compact dishwashers often experience this common problem.

If the temperature sensor is not functioning correctly, the heating element will run at its maximum capacity, as the thermistor is unable to regulate the dishwasher’s temperature accurately.

How To Fix

Discover how to find, examine, and substitute a thermistor.

  1. To resolve Dishwasher Error Code E2, disconnect the appliance from the electrical outlet and shut off the water sources.
  2. Remove all the dish baskets.
  3. Take out the waste filter and dismantle the lower sprayer.
  4. Flip the appliance over and remove the lateral screws.
  5. To access the thermostat located next to the heating element block, gently lift the bottom of the dishwasher after unplugging the branch pipe.
  6. Disconnect it from the electrical cables.
  7. Use a tester to clean the contacts of the temperature sensor and perform a test on it.

    To examine the thermistor, utilize a digital multimeter.

    At room temperature (around 77°F/25°C), measure its resistance.

    Submerge the thermistor in boiling water (212°F/100°C) and conduct another resistance test.

    The measurement should remain between 20 – 60 KOHM.

If the temperature sensor is faulty, it cannot be repaired and should be replaced with a new one. Do not try to fix it yourself and proceed to reassemble the dishwasher.

If you lack confidence in your technical abilities, it may be best to seek the assistance of a professional as resolving temperature sensor problems may involve disassembling certain components.

4. Edgestar Dishwasher

Improper use is the leading cause of most dishwasher blockages.

If you fail to eliminate food particles before loading them into the dishwasher, it could result in a blockage caused by the accumulation of debris and fats.

Over time, the leftover particles can harden and get stuck in the dishwasher drain pipes, leading to slow drainage of water from the tank.

How To Fix

To prevent Dishwasher Error Code E2, it is recommended to rinse the dishes thoroughly before placing them in the dishwasher, as this can help prevent blockages and reduce buildup within the unit.

Performing a routine maintenance wash can also be beneficial in preventing the buildup of residue and ultimately avoiding blockages.

5. Fisher and Paykel Dishwashers

When discussing wiring, the issue may stem from wires that have been damaged or a weak connection, resulting in either low or high voltage.

Another possible cause of the Dishwasher Error Code E2 is a faulty electrical box ground connection or a loose connection in the user interface.

How To Fix

  • Unplug the dishwasher from its power source.
  • Verify the linkage between the user interface and the electronic control.
  • Next, inspect the wiring of the complete circuit that includes both the heating element and the board.

Inspect the wiring connected to different parts such as the drain pump and water inlet valve, and replace any impaired cables while securing any loose wires.

6. Maytag Dishwasher

It is possible that the user interface is not sending the accurate signal to the main control board.

It seems that the occurrence of error code E2 signifies a breakdown in communication during the operation of the unit.

How To Fix

  • To fix the Dishwasher Error Code E2, turn off and disconnect the appliance from the electrical outlet.
  • To fix the Dishwasher Error Code E2, take out the screws that hold the inner door liner in place.
  • Inspect all the wire connections that connect the front interface to the main control board, secure any loose cables, and substitute any defective ones.
  • Reverse the order of the steps, starting with the liner.

7. Hobart Dishwasher

Commercial dishwashers are manufactured by Hobart, and the E2 error code appears on their LXi & AM Select Dishwashers immediately after the machine ceases operation.

The reason for the Dishwasher Error Code E2 is that the water is not entering the tank correctly, causing the machine to shut down when the wash water level is too low.

How To Fix

Inspect the inlet pipe for any bends or harm, and then verify that the water level sensor is functioning correctly.

In Summary

If your dishwasher is showing an E2 error code, begin troubleshooting by addressing the most obvious potential causes, such as insufficient power and a blocked drain.

Eliminate them from the potential causes as you eliminate each one. After that, move on to the technical ones, which often require some disassembly.

If you have tried cleaning the contacts, removing blockages, or replacing the thermistor to fix the dishwasher Error Code E2 and it still persists, seeking assistance from a professional may be necessary.

You can also check this video about “How to Fix: Dishwasher Error Code E2”

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