PartsFinder UK

E09

Error code

critical severity Siemens

E09 Error: Your Siemens dishwasher has displayed the E09 error code and

Your Siemens dishwasher has displayed the E09 error code and won't complete its wash cycle. This fault indicates that the appliance's heating element isn't working properly—essentially, your dishwasher cannot heat the water to the temperature needed for washing and drying your dishes effectively. The good news is that E09 faults are among the more common dishwasher problems, and many can be resolved without calling an engineer. In most cases, one of three components is responsible: the heating element itself may have failed, the temperature sensor (NTC) could be faulty and preventing the appliance from detecting water temperature, or occasionally the main control board (PCB) has developed an issue. Before you resign yourself to an expensive repair bill, it's worth investigating these parts yourself. The heating element is typically the culprit and is often replaceable without specialist knowledge. The temperature sensor is similarly straightforward to check and swap out if needed. This guide will walk you through diagnosing which component is causing your E09 error, so you can decide whether it's a job you're comfortable tackling or whether professional help is necessary.

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Diagnostic Steps

  1. 1

    Step 1

    Check the heating element continuity with a multimeter

  2. 2

    Step 2

    Inspect the element for limescale buildup (common in hard water areas)

  3. 3

    Step 3

    Check the NTC sensor

  4. 4

    Step 4

    Check the main control board for signs of burning

  5. 5

    Step 5

    Replace the heating element if it shows no continuity

⚠️ 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
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.
2
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.
3
control professional

Main Control Module (PCB)

OEM: 00648858

# Main Control Module (PCB) If your Bosch or Siemens dishwasher has stopped responding to button presses, won't cycle through programmes, or displays error codes, a faulty control module is likely the culprit. This component manages all the appliance's functions, so when it fails through age or electrical damage, your dishwasher becomes unusable. This replacement Main Control Module, reference 00648858, restores full functionality to compatible Bosch and Siemens models. It's a moderately challenging repair job, rated 4 out of 5 for difficulty, so expect to spend a couple of hours on installation if you're reasonably handy. Before you begin, take a photograph of the control panel layout and any cable connections. This simple step saves frustration when reassembling, as the module involves multiple electrical connections that must be correctly positioned. Modern control modules are precision components, so handle yours carefully throughout the installation process to avoid damage. Always verify your dishwasher's E-Nr model number matches the compatibility list before ordering. You'll find this on the appliance's data plate, usually inside the door edge. Ordering the wrong part wastes time and money, so take a moment to check first.

Frequently Asked Questions

What does the E09 error mean on a Siemens dishwasher?↓
Your Siemens dishwasher has displayed the E09 error code and won't complete its wash cycle. This fault indicates that the appliance's heating element isn't working properly—essentially, your dishwasher cannot heat the water to the temperature needed for washing and drying your dishes effectively. The good news is that E09 faults are among the more common dishwasher problems, and many can be resolved without calling an engineer. In most cases, one of three components is responsible: the heating element itself may have failed, the temperature sensor (NTC) could be faulty and preventing the appliance from detecting water temperature, or occasionally the main control board (PCB) has developed an issue. Before you resign yourself to an expensive repair bill, it's worth investigating these parts yourself. The heating element is typically the culprit and is often replaceable without specialist knowledge. The temperature sensor is similarly straightforward to check and swap out if needed. This guide will walk you through diagnosing which component is causing your E09 error, so you can decide whether it's a job you're comfortable tackling or whether professional help is necessary.
Can I fix the E09 error myself?↓
Many E09 faults can be resolved by a competent DIYer. Always disconnect from mains power first. If unsure, consult a qualified engineer.

Quick Summary

Code
E09
Brand
Siemens
Parts to check
3