Sharp E04 hob: what it means & what to check

What E04 actually means

The hob has decided the mains electricity reaching it isn't running at the frequency it expects, so it has shut the cooking zones down rather than carry on.

Sharp's induction hobs constantly monitor the incoming supply, because the electronics that generate the induction field rely on a stable mains frequency. When the board reads a frequency outside its rated range it halts heating and puts E04 (shown as E4 in Sharp's own manual for this hob) on the display. Sharp's instruction is to switch the hob off at the touch control and then use it again — if the code comes straight back, it needs looking at.

What E04 looks like on a Sharp hob

Most people find this page having searched for what the machine is doing rather than the code itself. On a Sharp hob, E04 usually shows up as one or more of these:

Not heating up
Takes ages to get to temperature
Cuts out part way through cooking
Noisy fan
Not getting cold evenly
Cuts out after a few minutes
No function at all
Dead — nothing lights up

Recognise any of those? That is this fault, and the rest of this page explains what causes it and what you can check yourself.

What usually causes it

A brief disturbance or dip in the household mains supply
Being run from a generator, inverter or unstable temporary supply rather than normal mains
A wiring or connection fault on the circuit feeding the hob
A fault on the hob's own control board misreading the supply

What you can safely check yourself

Work through these in order. Anything beyond this — panels off, testing parts, anything to do with the wiring — is an engineer's job, and not one to attempt with the machine plugged in.

Switch the hob off at the touch control, then turn it back on and try a zone again — Sharp expects a one-off reading to clear this way
If that doesn't clear it, turn the hob off at the wall or its isolating switch for a minute, then back on
Check whether anything else in the house is behaving oddly at the same time, such as lights flickering or other appliances tripping — that points at the supply rather than the hob
If the hob is being run from a generator or any non-mains supply, try it on normal mains instead

Which Sharp models show E04

E04 means the same thing on this model. If yours is not listed, the explanation above still applies — the code is set by the control board, not the model number.

KH-6I23BS00-EU

Common questions about Sharp E04

What does E04 mean on a Sharp hob?

The hob has decided the mains electricity reaching it isn't running at the frequency it expects, so it has shut the cooking zones down rather than carry on. Sharp's induction hobs constantly monitor the incoming supply, because the electronics that generate the induction field rely on a stable mains frequency. When the board reads a frequency outside its rated range it halts heating and puts E04 (shown as E4 in Sharp's own manual for this hob) on the display. Sharp's instruction is to switch the hob off at the touch control and then use it again — if the code comes straight back, it needs looking at.

Can I fix Sharp E04 myself?

There are 4 checks you can safely do yourself first.

Switch the hob off at the touch control, then turn it back on and try a zone again — Sharp expects a one-off reading to clear this way.
If that doesn't clear it, turn the hob off at the wall or its isolating switch for a minute, then back on.
Check whether anything else in the house is behaving oddly at the same time, such as lights flickering or other appliances tripping — that points at the supply rather than the hob.
If the hob is being run from a generator or any non-mains supply, try it on normal mains instead.

This sometimes clears with those checks. If it comes back, it needs looking at properly.

How much does it cost to repair Sharp E04?

£66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.

Tried the checks and it's still showing E04?

This sometimes clears with the checks above. If it comes back, it needs looking at properly. Then it wants someone who can open it up.

What it costs, before you call: the price is the same whatever the fault turns out to be — £66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.

Our own engineers, not a call centre. We cover Nottinghamshire, Derbyshire and Leicestershire — most hob faults are seen same day or next day.

Call 0115 648 0929 Book online — postcode and number is all we need

Outside our area? The explanation above still stands — take it to a local engineer and tell them the code. Knowing it saves them time and you money.

Other Sharp hob codes

All Sharp fault codes and repairs →

What this looks like when it happens

Written by the engineers at ASAP Repairs, 0115 648 0929. We repair these machines for a living in Nottinghamshire, Derbyshire and Leicestershire.

Sharp E04 error — hob