PartsFinder UK

E01

Error code

medium severity Bosch

E01 Error: Your Bosch dishwasher is displaying an E01 error code on its

Your Bosch dishwasher is displaying an E01 error code on its control panel, and you're understandably wondering what's gone wrong. This fault indicates that your dishwasher has detected a problem with its heating system, specifically with the NTC temperature sensor that monitors water temperature during the wash cycle. Without accurate temperature readings, your dishwasher cannot heat the water properly, which means your dishes won't be cleaned effectively. The good news is that E01 faults are often straightforward to resolve, and many homeowners successfully fix them without calling out an engineer. The two components most likely responsible are the NTC temperature sensor itself, which may have failed or become disconnected, or the heating element, which generates the hot water your dishwasher needs. Before you panic about expensive repairs, this error is generally considered medium severity and rarely indicates catastrophic damage. With a bit of guidance and basic tools, you may be able to identify and replace the faulty part yourself. However, if you're not confident working with electrical appliances, a qualified engineer can also diagnose and repair the issue relatively inexpensively.

AD This page contains affiliate links. Learn more.

Diagnostic Steps

  1. 1

    Step 1

    Check the NTC sensor resistance with a multimeter (should be ~10kΩ at 25°C)

  2. 2

    Step 2

    Inspect the heater element for visible damage

  3. 3

    Step 3

    Check wiring connections to the NTC sensor and heater

  4. 4

    Step 4

    Replace the NTC sensor if resistance is out of range

⚠️ Always disconnect your appliance from mains power before starting any repair. If in doubt, consult a qualified engineer.

Parts to Check in order of probability

1
sensor medium

NTC Temperature Sensor

OEM: 00171260

# NTC Temperature Sensor for Bosch and Siemens Dishwashers When your dishwasher fails to heat water properly or displays temperature-related error codes, a faulty temperature sensor is often the culprit. This NTC Temperature Sensor (OEM reference 00171260) regulates water temperature throughout the wash cycle, ensuring your dishes come out spotlessly clean. Without it functioning correctly, your appliance simply cannot perform its job effectively. This genuine part is designed for Bosch and Siemens dishwashers and handles general wear and failure that occurs naturally over time. Replacing it is a straightforward task rated at difficulty level 2, making it manageable for most home DIYers without specialist training. When installing your new sensor, take time to ensure the connector sits fully and firmly in place, as loose connections are a common cause of recurring issues. This simple precaution can save you troubleshooting headaches down the line. Before ordering, verify your dishwasher's E-Nr model number matches this part's compatibility to guarantee a perfect fit and smooth replacement. This reference number is typically found inside the door edge or on the appliance's data plate.
2
heater hard

Heating Element

OEM: 00481280

# Heating Element for Bosch and Siemens Dishwashers If your dishwasher isn't heating water properly or leaving dishes wet at the end of a cycle, a faulty heating element is likely the culprit. Over time, these components wear out from constant use, leading to poor wash results and extended drying times. This replacement heating element, OEM reference 00481280, is designed for Bosch and Siemens dishwashers and restores your appliance's ability to reach optimal water temperatures. Installation is moderately straightforward, rated at difficulty level 3, making it achievable for most confident DIY homeowners. When fitting the new element, ensure the dishwasher is completely unplugged and fully drained before you begin work. This protects against electrical hazards and prevents water damage to surrounding components. Take photographs of the original wiring connections before removal so you can replicate them accurately. Quality replacement parts like this genuine OEM component help extend your dishwasher's lifespan and maintain cleaning performance. Before ordering, please verify your dishwasher's E-Nr model number to confirm compatibility with this part.

Frequently Asked Questions

What does the E01 error mean on a Bosch dishwasher?↓
Your Bosch dishwasher is displaying an E01 error code on its control panel, and you're understandably wondering what's gone wrong. This fault indicates that your dishwasher has detected a problem with its heating system, specifically with the NTC temperature sensor that monitors water temperature during the wash cycle. Without accurate temperature readings, your dishwasher cannot heat the water properly, which means your dishes won't be cleaned effectively. The good news is that E01 faults are often straightforward to resolve, and many homeowners successfully fix them without calling out an engineer. The two components most likely responsible are the NTC temperature sensor itself, which may have failed or become disconnected, or the heating element, which generates the hot water your dishwasher needs. Before you panic about expensive repairs, this error is generally considered medium severity and rarely indicates catastrophic damage. With a bit of guidance and basic tools, you may be able to identify and replace the faulty part yourself. However, if you're not confident working with electrical appliances, a qualified engineer can also diagnose and repair the issue relatively inexpensively.
Can I fix the E01 error myself?↓
Many E01 faults can be resolved by a competent DIYer. Always disconnect from mains power first. If unsure, consult a qualified engineer.

Quick Summary

Code
E01
Brand
Bosch
Parts to check
2