What does Smeg E01 mean?

Smeg shows E01 as a communication error. The display title reads "COMMUNICATION ERROR" with the instruction "CHECK POWER BOARD". The control electronics have lost reliable communication with the power board that drives the oven's heating and steam functions, so the cycle cannot run normally until the link is restored.

What does Smeg E02 mean?

Smeg shows E02 as a firmware version error. The display title reads "WRONG FW VERSION" with the instruction "UPDATE POWER BOARD".

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.

Does AskWhiz cover Smeg equipment?

Yes. AskWhiz is trained on official Smeg service and operator documentation, so it can answer fault-code, error-message, and repair questions for Smeg commercial kitchen equipment directly in WhatsApp.

How do I troubleshoot Smeg error codes?

Send AskWhiz your Smeg model number and the error code or symptom on WhatsApp. It searches the official Smeg manuals and returns the likely cause and the documented fix, step by step, so you stop scrolling through PDFs in the field.

Is AskWhiz a substitute for the Smeg service manual?

No. AskWhiz reads the official Smeg documentation and surfaces the relevant procedure fast, but always follow the manufacturer safety warnings and call a qualified Smeg technician for work that requires one.

Commercial Kitchen

Smeg error codes, decoded.

Look up any Smeg fault code below. Each one is grounded in Smeg's own service documentation — the meaning, the symptoms, the causes, and the steps to clear it.

By Nichita Herput

Co-founder & CEO · Reviewed May 2026

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Smeg sits in our Commercial Kitchen coverage. Every page here is transcribed from the manufacturer's manuals, not scraped from forums.

What error codes does Smeg display?

Tap a code for the full breakdown — meaning, symptoms, causes, and fix steps.

E01

Communication error — check power board

E02

Wrong firmware version — update power board

E03

No water pressure — cycle stopped

E04

Timeout — error during cooldown

E05

Washes database error — unable to read database, reinstall software

E06

Safety thermostat — oven over-temperature

E07

Thermal cutout — motor over-temperature

E08

Probe fault — oven chamber probe faulty

W01

Warning — low inlet water pressure

W02

Warning — motor RPM not detected

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Common questions about Smeg equipment

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