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Error code reference

Electrolux Oven Error Code U015

No water in boiler

Electrolux codesElectrolux oven codes

No water in boiler - INFO. Machine start or boiler water filling phase.

First step from the service manual

Ensure the water supply is opened; message disappears when reaching the right level in the boiler.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What U015 means on a Electrolux oven

U015 is an informational status code on Electrolux steam ovens, not a fault or error in the traditional sense. It appears during the initial machine start sequence or during the boiler water filling phase, indicating that the boiler does not yet contain enough water to begin generating steam. The oven's control system monitors the water level inside the boiler and displays U015 as a notification while it waits for the water level to reach the correct operating threshold.

The component at the center of this code is the steam boiler and its associated water level sensing system. When the oven is first powered on or a steam function is selected, the control initiates a water filling cycle. During this cycle, water flows from the connected supply line into the boiler reservoir. The U015 message persists throughout this filling phase and clears automatically once the water level sensor confirms the boiler has reached the proper level for steam generation.

The most common reason this message stays on longer than expected, or fails to clear, is an issue with the water supply rather than an internal component failure. A closed or partially closed water supply valve, a kinked or blocked inlet hose, or low incoming water pressure can all slow or prevent the boiler from filling. In some cases, a clogged inlet filter screen or a faulty water inlet valve may restrict flow. Because U015 is classified as an informational message, it is designed to disappear on its own once normal fill conditions are met.

Source: manufacturer service documentation.

Common causes of U015

  1. 01

    Water supply valve closed or partially closed

    Wiring / connection

    If the shutoff valve on the water supply line feeding the oven is not fully open, water cannot flow into the boiler at the required rate. Check the valve behind or beneath the oven and confirm it is fully open.

  2. 02

    Kinked or blocked water inlet hose

    Wiring / connection

    A bent, kinked, or pinched supply hose will restrict water flow to the boiler. Inspect the hose running from the supply valve to the oven inlet for any obstructions or sharp bends.

  3. 03

    Clogged inlet filter screen

    Wiring / connection

    Most water inlet connections include a small mesh filter screen that can accumulate mineral deposits over time, reducing flow. Removing and cleaning the screen can restore proper fill speed.

  4. 04

    Faulty water inlet valve

    Part replacement

    The solenoid-operated water inlet valve controls flow into the boiler. If the valve is not opening correctly due to electrical failure or mechanical wear, the boiler will not fill and the U015 message will persist.

  5. 05

    Low incoming water pressure

    Wiring / connection

    Insufficient water pressure from the household supply can prevent the boiler from filling within the expected time. Verify that water pressure at the supply point meets the oven's minimum requirements.

See the test procedure for each cause

Frequently asked questions about U015

What does U015 mean on a Electrolux oven?
U015 is an informational status message indicating that the steam boiler does not yet contain enough water to operate. It appears during startup or when a steam cooking function is selected, while the oven is in the process of filling the boiler. The message is not a fault code and will clear automatically once the boiler reaches the correct water level.
How do I fix the U015 code on my Electrolux steam oven?
Start by confirming that the water supply valve connected to the oven is fully open. Check the inlet hose for kinks or blockages and inspect the inlet filter screen for mineral buildup. If the supply is fully open and unobstructed but the message does not clear after a reasonable fill period, the water inlet valve may need to be tested or replaced.
Is it safe to use my Electrolux oven while U015 is displayed?
While U015 is active, the oven is in a filling phase and steam functions will not yet operate. You should wait for the message to clear before beginning a steam cooking cycle. Attempting to run a steam program without adequate water in the boiler can prevent proper cooking results and may stress the boiler heating element.
Will resetting the oven clear the U015 code?
Resetting or power cycling the oven will not permanently clear U015 if the underlying water supply issue has not been resolved. The code will reappear whenever the oven attempts to fill the boiler and cannot do so. The message clears on its own only when the boiler reaches the correct water level, so the supply problem must be addressed first.
How much does it cost to repair a U015 error on an Electrolux oven?
If the issue is simply a closed supply valve or a kinked hose, there is no parts cost involved. Cleaning a clogged inlet filter screen is also a no-cost repair in most cases. If the water inlet valve needs replacement, parts typically range from $30 to $80, with professional labor adding $100 to $200 depending on the service provider and region.

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