Panasonic Error
The same word means two opposite things on a Panasonic, and when it appeared decides which: a wrong button press, or stop using the appliance.
Take care
What this means
Panasonic publish the word Error with two entirely different meanings separated by nothing but timing, and getting the two the wrong way round is either a wasted service call or an appliance that should have been taken out of use. Their wording draws the line clearly. If the error is received during microwave programming, it indicates an incorrect operation has been performed — the example they give is an incorrect button, or a button not available in the current programming — and the answer is the operating instructions.
If the same error is received during the cooking operation, this indicates a problem with the microwave, and their instruction is to stop use of the microwave and contact an authorised service centre. So the question to answer before anything else is not what the word means but when it arrived. Did it appear while you were pressing buttons and setting something up, or did it appear with the appliance already running? A programming error is common, harmless and specific to the model — combination appliances have functions that are unavailable in certain modes, and pressing for one of them produces this rather than a beep.
An error mid-cycle is Panasonic classifying the appliance as faulty, and it is the only display on their consumer list where they use the phrase stop use rather than offering a remedy. That same phrase appears against E01, which is also handled by stopping, unplugging and calling service. Treat a mid-cook Error as belonging to that group rather than to the harmless one, and note that Panasonic ask you to stop rather than to reset and retry.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Unavailable button pressed while programming | Panasonic’s own example: an incorrect button, or one not available in the current programming stage. | Common |
| Function not valid for the selected mode | Common on combination appliances, where options exist in some cooking modes and not in others. | Common |
| A genuine fault detected during cooking | The other meaning entirely. Panasonic’s instruction here is to stop using the appliance and call service. | Occasional |
What to try yourself
Answer the timing question first. Did the word appear while you were setting the appliance up, or while it was already cooking? Everything else follows from that.
If it was during programming, clear it and start again, and check the instruction book for which functions your model allows in the mode you are using.
If it appeared during cooking, stop. Panasonic’s published instruction for that case is to stop using the microwave and contact an authorised service centre, not to reset and retry.
Unplug it rather than leaving it available for somebody else to use in the meantime. Panasonic use the same stop-use wording against E01.Note what the appliance was doing when it happened — which mode, how far in, whether anything sounded or smelled different. That is the useful information when you book, and the code itself carries none of it.
Get a qualified appliance engineer to look at your Panasonic microwave
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–£200
Time on site
10 minutes
Nothing if it was a programming error, which is the common case. If it appeared during cooking, Panasonic treat the appliance as faulty and the cost depends entirely on what is found — a diagnostic visit is typically £70 to £90.
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 Panasonic fault codes
- H97Get it checkedAn inverter or magnetron fault — and a counter. Panasonic state three H97 events disable the oven permanently, even after the faulty part has been replaced.Related: same brand
- H95Get it checkedPanasonic’s UK support answer puts H95 on the inverter circuit; their service manuals decline to separate it from H97, H98 and H99 at all.Related: same brand
- DUsually simple to fixDemo mode. The appliance lights up, counts down and appears to work while making no microwaves at all, and it survives being delivered to you.Related: same brand
- CoolingUsually simple to fixNothing is wrong. Panasonic publish this one plainly: the fan is clearing heat off the electronics, and the word goes away when it stops.Related: same brand
- H99Get it checkedThe catch-all. Panasonic UK describe H99 as a general code for a problem with no code of its own; their service manuals file it with the magnetron.Related: same brand
- HOTUsually simple to fixThe cavity is still too warm from the last thing you cooked for an automatic programme. Manual cooking still works, and opening the door speeds it up.Related: same brand
Own a Panasonic microwave? Save it and its codes come first next time.
Related guides
Common questions
It said Error while I was setting the timer. Is my microwave broken?
Almost certainly not. Panasonic define an error during programming as an incorrect operation — a wrong button, or one unavailable at that point. Clear it, check the manual for what your model allows in that mode, and carry on.
It said Error halfway through cooking. Can I use it again?
Panasonic answer that one for us and they answer it as an instruction: stop use of the microwave and contact an authorised service centre. That is unusual wording on a consumer troubleshooting page, and it is worth respecting rather than testing.
Why does one word cover both?
We do not know why Panasonic designed it that way, and we are not going to speculate. What matters is that they document both meanings and separate them purely by when the message appears, so the timing is the diagnosis.
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 support portal
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.