Bosch Dishwasher Error Code E15: How to Fix It

Bosch, a renowned German company recognized for its production of high-quality automotive parts and household appliances, has gained notable acclaim for its innovative features and durable construction of Bosch dishwashers. Nonetheless, even the most meticulously crafted dishwashers may encounter issues leading to the activation of error codes. When such a code emerges, the dishwasher typically ceases operation, prompting a swift diagnosis and resolution.

In the case of a Bosch dishwasher displaying error code E15, the indication is the presence of water in the dishwasher’s base. Although often manageable, resolving this error may necessitate accessing the dishwasher’s front panel and kickplate. Furthermore, identifying the root cause is imperative to prevent the recurrence of the error code and mitigate potential damage to the dishwasher or surrounding environment.

Below are the steps to address a Bosch dishwasher displaying an E15 error code.

This guide is applicable to a wide range of Bosch dishwashers, encompassing models such as:

• GM926710
• SHE43P25UC/64
• SHE45M05UC/50
• SHE45M05UC/50
• SHE45M06UC/50,
• SHE45M06UC/50
• SHE4AP06UC/06
• SHE4AP06UC/06
• SHE55M12UC/64
• SHE55M15UC/64
• SHE55M16UC/64
• SHE55M16UC/64
• SHE58C05UC/48
• SHI4302
• SHI4306
• SHI6802

Step 1: Try to clear the error code

The Bosch E15 error code commonly signifies an excess of water in the dishwasher, though it could also stem from a malfunction in the control board. If the error was triggered by a glitch, conducting a hard reset—disconnecting the dishwasher’s power for five minutes—should resolve the issue. Should the error persist, it will be necessary to eliminate the water accumulated in the dishwasher’s base.

Step 2: Consider the tilt method

An alternative approach for promptly addressing the error code and potentially resolving the issue involves tipping the dishwasher backward at a 45-degree angle. Nevertheless, this method is unlikely to offer a lasting solution and may even exacerbate the dishwasher’s problems. Furthermore, it’s improbable that you’ll identify and rectify the underlying cause of the error code, which could signify a hazardous leak.

Should you opt for this technique to tackle the E15 error code, you’ll need to extract the dishwasher from beneath the kitchen cabinet and then cautiously tilt it backward at a 45-degree angle.

During the tilting process, any water accumulated in the base should drain out, thus eliminating the error code. It’s essential to disconnect both the power and water supply from the dishwasher before repositioning it and to place a receptacle underneath to contain the discharged water. Upon restoring power, the error code should no longer persist.

Step 3: Remove the water and reset the water level safety switch

Typically, the most effective method for addressing the E15 error code on a Bosch dishwasher involves cleaning up any accumulated water at the base of the dishwasher and resetting the water level safety switch.

To access the safety switch, you’ll need to take off the outer door panel and the kickplate of the dishwasher. Depending on the specific model, you’ll likely require a T20 or T15 Torx screwdriver, or alternatively, a Phillips-head screwdriver, to remove both the outer door panel and the kickplate.

Follow these instructions to reach the dishwasher’s water level safety switch:

• Disconnect the dishwasher’s power source, either by unplugging it or switching off the power at the electrical panel in your home.
• Turn off the water supply connected to the dishwasher.
• Open the dishwasher door and lay it flat.
• Identify and remove the six screws situated around the inner door that connect the inner and outer panels.
• Carefully lift the dishwasher door back to its upright position.
• Remove the outer panel of the dishwasher door.
• Take off the dishwasher’s toe kick plate or bottom access panel by unscrewing the securing screws.

After removing the outer door panel and the kickplate, you will gain entry to the bottom of the dishwasher and the central basin housing the safety switch. Normally, the safety switch is shielded by a plastic cover, with a polystyrene disk positioned below the switch.

How does the safety switch work?

The safety switch is positioned above the polystyrene disk and basin, ensuring its secure placement. As the water level in the basin increases, the polystyrene disk ascends along with it. In the event of excess water, the disk engages the safety switch, leading to the activation of the E15 error code.

To clear the E15 error code and reset the switch, follow these steps:

• Twist and pull the safety switch to remove it.
• Remove the polystyrene disk cautiously to avoid any damage.
• Use a towel or cloth to absorb water from the basin and dry the disk.
• Ensure the basin is clear of any potential obstructions to the safety switch, such as wiring, insects, or food debris.
• Reinsert the polystyrene disk into the basin securely.
• Properly secure the safety switch back into the basin.
• Inspect the dishwasher base wiring for any signs of damage; if damaged, seek assistance from a trained technician for replacement.
• Investigate the cause of the E15 error code, checking for leaks in hoses or visible damage.
• Reassemble the dishwasher once all necessary checks and repairs are completed.

The E15 error code on your Bosch dishwasher should now be resolved. Nonetheless, it’s important to identify the underlying cause of the error and ensure it’s addressed. It’s conceivable that the error was prompted by the use of incorrect detergent rather than a leak (refer to details below).

What causes the Bolsch dishwasher E15 error code?

• Detergent unsuitable for dishwasher use
• Excessive detergent application
• Spray arms obstructed or malfunctioning, causing misdirected water flow
• Leakage in the sump basin (where the filter resides)
• Leaky hoses
• Water tank with leaks

Conclusion

An E15 error code in a Bosch dishwasher indicates an excess of water in the unit’s base. Resolving the E15 error involves draining the water from the basin and resetting the safety switch. Additionally, it’s crucial to identify the underlying cause of the error and implement preventive measures to prevent its recurrence.