Ohme Flashing yellowwhat it means
On a Home or Go this means an electrical fault, and all lights flashing together means the car. Steady red on these models is not a fault at all.
Take care
What this means
Ohme publish a decoder for the three-segment light ring on the Home and Go, and it separates two faults that lead to completely different phone calls. Flashing yellow is an electrical fault. All lights flashing simultaneously is an EV fault — a problem the charger has identified at the vehicle end rather than its own. Ohme's stated action for both is to contact their customer care team through the log a ticket option, but knowing which of the two you have is worth having before you do, because one of them may be a conversation with your car's manufacturer instead.
The rest of the decoder matters just as much, because it contains the trap. Steady green means waiting and ready to plug in. Flashing green means plugged in and waiting to connect to the vehicle. Lights flashing in sequence means waiting for a schedule to start charging. Steady red means connected to the vehicle and waiting for the vehicle to accept the charge — and steady red combined with flashing green means actively charging. So on a Home or a Go, red is a normal working colour and appears during a completely healthy session. An owner who sees red and assumes fault will chase something that is not there. That convention is specific to these models and Ohme contradict it on their own Home Pro, where red does mean error.
Two states in this decoder deserve separating from faults because they look like stalls. Flashing green — plugged in, waiting to connect — can persist for a while as the car and charger negotiate, and unplugging during it starts the negotiation again from the beginning. Lights flashing in sequence is the schedule, and combined with the mandated randomised start delay it is the single commonest reason an Ohme appears to be doing nothing on a driveway.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| A normal waiting state misread as a fault | Steady red on a Home or Go means connected and waiting for the vehicle to accept charge. It appears in every healthy session and is not an error. | Common |
| The schedule, shown as lights flashing in sequence | The charger waiting for its window. Combined with the randomised start delay required on UK chargers, this accounts for most reports of an Ohme doing nothing. | Common |
| An electrical fault detected by the charger | What Ohme publish flashing yellow to mean. Their action is to log a ticket with customer care rather than to try anything at the unit. | Occasional |
| A fault at the vehicle end | All lights flashing simultaneously, which Ohme publish as an EV fault. Worth establishing because the useful call may be to the car manufacturer. | Occasional |
What to try yourself
Confirm which Ohme you have. The Home and Go decoder below does not apply to a Home Pro, where the colours mean different things.
Read the pattern rather than the colour. Flashing yellow is an electrical fault; all segments flashing together is a vehicle fault; steady red on its own is normal.
If the lights are flashing in sequence, nothing is wrong — the charger is waiting for its schedule, and a randomised delay of up to ten minutes may be running on top of that.
Check the app, which will give you a fuller message than the ring can and will show the live mains voltage on a Home or Go.
Try the two sanctioned resets: unplug and re-plug the vehicle, or switch the supply off, wait five seconds and switch back on.
If a fault pattern persists, log a ticket with Ohme customer care, which is their published route for both fault patterns.
Do not open the unit. Ohme state plainly that there are no user-serviceable parts and that the charger should not be opened, repaired, tampered with or modified in any way, and that not following the safety instructions can result in electric shock, fire, serious injury or death.
Get a registered electrician to look at your Ohme ev charger
We do not pass enquiries to a repair firm, so there is no form here. When you book a registered electrician, 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–£260
Time on site
20 minutes
Nothing for the normal states, which covers most of what people report. A manufacturer visit for a genuine electrical fault, and that should be free within warranty.
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 Ohme fault codes
- Home Pro red lightGet it checkedOn a Home Pro the light strips turning red means error, and Ohme publish no code list behind it. Read the screen for the reason, power cycle once, and contact Ohme if it stays.Related: status lights
- Home Pro blue lightUsually simple to fixBlue on a Home Pro is delayed charging: the car is plugged in and Ohme is waiting for the scheduled or off-peak window. Solid green is plugged in, fading green is charging.Related: status lights
- Charger offlineUsually simple to fixAn Ohme that shows Connecting to the internet, Scanning cell towers or Trying to reconnect, or an ePod blinking orange, has lost its 4G link. Ohme’s remedy is a fifteen-minute power cycle.Related: status lights
- OvervoltageGet it checkedAbove 253 volts or below 207, Ohme pause charging. Their published remedy sends you to your distribution network operator, not to Ohme.Related: same brand
- RCD activationGet it checkedOhme build the residual current protection into the unit and publish the reset for it — one of very few owner actions any manufacturer in this category sanctions.Related: same brand
- Suspended EVUsually simple to fixAn app message meaning Ohme tried to send charge and the car limited what it would take. Ohme’s checklist runs through the car’s own limits, timers, tariff pairing and the API link.Related: same brand
Own an Ohme ev charger? Save it and its codes come first next time.
Related guides
Common questions
My Ohme is showing red. Is that a fault?
On a Home or Go, no. Ohme publish steady red as connected to vehicle, waiting for vehicle to accept charge, and steady red with flashing green as actively charging. On a Home Pro red does mean error, which is why establishing the model matters before reading anything into the colour.
What is the difference between flashing yellow and all lights flashing?
Ohme publish flashing yellow as an electrical fault and all lights flashing simultaneously as an EV fault. The first points at the charger or its supply, the second at the car, and knowing which you have changes who is worth ringing.
My Home Pro screen has gone red.
That may not be a fault. Ohme note that the Home Pro display turns from blue to red when max charge is applied, so a red screen there can mean the unit is charging at full rate on your instruction. The light and the screen are telling you different things.
The lights just cycle round and nothing happens.
That is the charger waiting for its schedule, which Ohme publish as lights flashing in sequence. UK chargers also apply a randomised start delay of up to ten minutes by law, so the wait can be longer than the schedule alone suggests.
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
- 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.