What Does Error Code E67 Mean on a Siemens Washing Machine?

Siemens Updated 8 April 2026
Quick Fix

Check and clean the filter, then inspect the heating element connections at the back of the drum — if the wiring harness has worked loose, reseat it firmly and restart the cycle to clear the error (takes about 10 minutes).

Fault description

Error code E67 signals that your Siemens washing machine has detected a problem within its heating circuit. This circuit is responsible for raising the water temperature to the level you select on the dial or display. When the machine cannot confirm that heating is working correctly — either because it cannot reach the target temperature or because sensor readings are inconsistent — it stops the cycle and displays E67 to protect your laundry and the appliance itself.

When this error appears, the wash drum typically stops mid-cycle, often during the main wash phase when heating is most active. The machine may lock the door and refuse to continue until the fault is resolved. In some Siemens models the error can also appear at the start of a cycle before any heating has taken place, which usually points to a sensor or wiring issue rather than a failed element.

The good news is that several of the most common causes behind E67 are straightforward to investigate at home without specialist tools.

Causes

  • Loose or corroded wiring connections — Vibration over time can cause the wiring harness connecting the heating element or NTC sensor to the control board to work loose. Corroded terminals can also interrupt the signal, causing the board to log a heating circuit fault even if the element itself is fine.
  • Faulty NTC temperature sensor — The NTC sensor monitors water temperature and reports back to the control board. If it fails or drifts out of its calibrated range, the board cannot verify that heating is occurring and triggers E67.
  • Failed or degraded heating element — The heating element can burn out or develop a partial break in the coil, preventing it from generating heat. Scale build-up from hard water accelerates this process and is one of the most common reasons elements fail prematurely.
  • Limescale build-up on the heating element — Heavy limescale deposits act as insulation around the element, reducing its efficiency and causing it to overheat internally. The control board may detect abnormal temperature behaviour and raise E67 as a precaution.
  • Control board fault — In less common cases, the main PCB itself may have a damaged relay or component responsible for switching power to the heating circuit. This is usually only suspected after all other causes have been ruled out.

Step-by-Step Fix

  1. 1

    Power cycle the machine

    Switch the machine off at the mains and unplug it. Wait at least two minutes before plugging back in and restarting. Occasionally a temporary sensor glitch can trigger E67, and a full power reset clears it without any further action needed.

  2. 2

    Run a service wash or descaling cycle

    If you live in a hard water area and have not descaled the machine recently, run an empty 90°C cycle with a proprietary washing machine descaler or two tablespoons of citric acid. Heavy limescale on the element can cause erratic temperature readings that trigger E67. Do this monthly as a preventive measure going forward.

  3. 3

    Inspect the wiring harness at the heating element

    Unplug the machine and pull it away from the wall. Remove the rear panel (usually held by two or three screws). Locate the heating element at the bottom of the drum and check that both spade connectors are seated firmly on the terminals. If they look corroded or discoloured, gently clean them with fine sandpaper and reseat them. Refit the panel and test.

  4. 4

    Test the NTC temperature sensor

    With the rear panel removed, locate the NTC sensor — it is usually clipped into the heating element housing or mounted nearby on the drum casing. Disconnect it and use a multimeter set to resistance (Ohms). At room temperature, a healthy NTC sensor typically reads between 10,000 and 15,000 Ohms. A reading of zero or infinity indicates a failed sensor that needs replacing.

  5. 5

    Test the heating element for continuity

    With the machine still unplugged and the rear panel off, disconnect both wires from the heating element terminals. Set your multimeter to continuity or resistance mode and touch the probes to the two terminals. A working element typically reads between 20 and 50 Ohms. No continuity at all means the element has failed and must be replaced.

  6. 6

    Check for earth leakage on the element

    While the element is disconnected, place one multimeter probe on a terminal and the other on the metal casing of the element. There should be no continuity between them. If there is, the element has broken down internally and is unsafe — replace it before using the machine again.

  7. 7

    Replace the faulty component and retest

    Once you have identified the failed part — sensor, element, or wiring — fit the correct replacement part for your specific Siemens model number. Reconnect all wiring, refit the rear panel, and run a short warm wash cycle to confirm the E67 error has cleared and the machine heats correctly.

Affected models

When to call a service technician

If you have tested both the NTC sensor and the heating element with a multimeter and both return readings within the normal range, the fault is likely inside the main control board. A damaged relay or failed triac on the PCB requires component-level diagnosis and soldering skills that go beyond typical DIY repair. Attempting to repair a PCB without the right equipment can cause further damage.

You should also contact a service technician if you find evidence of burning, melted plastic, or a strong electrical smell near the element or wiring. These signs suggest the fault has progressed beyond a simple component swap and the machine should not be used until it has been professionally assessed.

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Frequently Asked Questions

Can I still use my Siemens washing machine while it shows E67?

It is not advisable. When E67 is active, the machine is not heating water reliably, which means your laundry will not be washed hygienically at the temperature you selected. Running the machine repeatedly in a fault state can also put additional stress on the control board. Resolve the fault first, then resume normal use.

How much does it cost to replace a Siemens washing machine heating element?

A replacement heating element for a Siemens washing machine typically costs between £20 and £50 for the part alone, depending on the model. If you fit it yourself the total cost stays low. A service technician call-out and labour will add to this, but the repair is usually still worthwhile compared to replacing the machine.

Will E67 clear itself after a power reset?

Occasionally, yes — if the error was caused by a temporary sensor glitch or a brief voltage fluctuation, a full power cycle can clear it. However, if the underlying cause is a failed element or sensor, the code will return as soon as the machine attempts to heat water again. Always investigate the root cause rather than relying on resets.

How do I find the model number on my Siemens washing machine?

The model number is printed on a label inside the door frame — open the door and look around the inner rim of the door seal. It is also sometimes on the back panel. You will need the full model number (for example, WM14T491GB) to order the correct heating element or NTC sensor, as parts are not universal across the Siemens range.

Is E67 the same fault as E17 or E18 on Siemens machines?

No. E17 and E18 relate to water inlet and fill issues, while E67 is specifically a heating circuit fault. They share some symptoms — a stopped cycle, a locked door — but the affected components are completely different. Always confirm the exact code on the display before ordering parts or starting any repair work.