Sharp E01 fault codewhat it means and how to fix it
Overheating protection. Sharp’s appliance has sensed a high temperature and stopped itself, and STOP/ECO is what clears the display.
Take care
What E01 means
Sharp’s wording is short: when the oven senses a high temperature the display will indicate E01 and stop operating, and this can be cancelled by pressing the STOP/ECO button. Read the order of events in that sentence, because it decides what you should do. The appliance measured a temperature, decided it was too high, and stopped. Nothing has failed yet. What you are looking at is the protection working, and the question is what made the cavity hot enough to trigger it.
On a combination model — and these codes only appear on combination models — the honest first answer is usually the cooking itself. Convection and grill modes put real oven heat into a cavity that was designed around a magnetron, and back-to-back use with no cooling in between accumulates. The platform this code comes from names two causes in its own fault table and they are both worth checking: the fan not running, and the appliance having been operated for a long time while empty. The second is the one people do not connect to a temperature code, and it is the single most damaging habit with any microwave, because with nothing to absorb the energy it goes back where it came from. The mistake to avoid is treating STOP/ECO as the fix. It clears the display; it does not cool anything down.
Press it on an appliance that is still hot and you will be back here in a minute, and each of those cycles puts the electronics through the temperature they were being protected from. Give it time with the door open first. If the code appears when nothing has been cooked, or the appliance is cool to the touch, then the measurement rather than the temperature is suspect, and Sharp have a separate pair of codes for that.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Heavy or repeated convection and grill use | Cumulative oven heat in a cavity sized for a magnetron. Common on combination models used back to back with no cooling gap. | Common |
| Cooling fan not running | Named directly in the platform fault table for this code. Without airflow the cavity and the electronics reach the threshold on an ordinary cycle. | Common |
| Operated for a long time while empty | The other cause the table names, and the one owners rarely connect to a heat code. With no load, the energy returns to the magnetron. | Occasional |
| Ventilation blocked or clearances too tight | A microwave pushed back against a wall or boxed into a shelf recirculates its own hot exhaust. | Occasional |
What to try yourself
Open the door and leave the appliance alone for twenty minutes or so before pressing anything. Cooling is the actual remedy here and STOP/ECO is only the acknowledgement.
Listen for the fan on the next cycle. Sharp’s own self-check asks you to hold a hand above the air vents to confirm it is moving air, which is a fair test without any tools.
Check the clearances behind and above the appliance against the figures in its own instructions, and move anything stacked against the vents.
Press STOP/ECO to clear the code, then run something ordinary and short rather than another long convection programme.
Never run the appliance empty to test it. With no food to absorb the energy it goes back into the magnetron, which is how a protection code becomes a repair bill.If it recurs on a cool appliance with the fan running, treat it as the sensing rather than the heat and get it looked at, quoting the code.
Get a qualified appliance engineer to look at your Sharp E01
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What it costs to fix
Typical repair cost
£0–£160
Time on site
30 minutes
Usually nothing: cooling and clearing the vents is the whole job. A cooling fan or a temperature sensor with a visit is typically £90 to £160, which on a mid-range combination microwave is worth weighing against replacement.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Sharp fault codes
- E02Get it checkedLow temperature protection — the odd one. The appliance has stopped because a temperature reading was implausibly low rather than high.Related: overheating and cooling
- E03Get it checkedSensor malfunction protection, with a warning tone. Sharp name E03 and E04 in one sentence and explain neither separately.Related: same brand
- E04Get it checkedThe code no other brand on this platform publishes. Sharp document it only by naming it beside E03, with the same cause and the same remedy.Related: same brand
Own a Sharp microwave? Save it and its codes come first next time.
Related guides
Common questions about Sharp E01
Is pressing STOP/ECO enough?
It is enough to clear the display and Sharp say so. It is not enough to fix anything, because the appliance stopped in response to a temperature and pressing a button does not lower one. If you clear it and immediately restart, expect the same code.
My microwave does not have convection. Can it show E01?
Almost certainly not. This code comes from the protection section of Sharp’s combination manuals, and their solo and grill manuals have no such section and no codes at all. If a code appears on one of those, the manual for it does not document any.
How long should I leave it?
Twenty minutes with the door open is usually plenty after normal use, longer after a full convection bake. There is no harm in leaving it longer, and there is a real cost to clearing the code and restarting repeatedly while the appliance is still at the temperature it objected to.
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer technical and service documentation
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.