Smeg E03 Error Code

What does Smeg E03 mean?

Smeg shows E03 as a water-pressure fault. The display title reads "NO WATER PRESSURE" with the description "CYCLE STOPPED". The oven has not detected adequate water supply pressure for steam or washing functions, so it halts the running cycle to protect the appliance until the water supply is restored.

Symptoms

• Display shows E03 with the title "NO WATER PRESSURE"
• Running cycle stops part-way through
• Oven does not produce steam
• Washing function does not work

Common causes

• No water supply to the appliance
• Water tap closed or partially open
• Inlet water pressure too low
• Restricted or kinked water supply line

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Diagnostic steps

1. Check the water tap

   The manual's fault table says to check the water tap when the oven does not produce steam or the washing function does not work; make sure the supply tap is fully open.

2. Confirm the water supply

   Verify mains water is available to the appliance and that the inlet line is not kinked or shut off.

3. Restart the cycle

   Once water supply is restored, restart the cooking or washing cycle and confirm the oven resumes normally.

4. Contact Technical Assistance if it persists

   If E03 returns with the water supply confirmed open, contact the Technical Assistance Service as the manual directs.

When to call a professional

If the water tap is open and supply pressure is confirmed but E03 keeps stopping the cycle, the fault may lie in the inlet valve or pressure sensing, which the manual treats as a Technical Assistance matter. Call a qualified Smeg technician rather than dismantling the water circuit yourself, since the appliance combines water and mains-voltage heating components.