Ohme home charger tripping

[JannerKebab]

Hi, I put my car on charge last night and discovered this morning it had tripped out. I have tried several times now but when the car locks in the plug it trips out the consumer unit. It has been fine for the last five months. OHME charging point. Has anyone had this problem?
Thanks
Chris

Hi Chris, did you get to the bottom of this and find out why it was tripping? My car went in as it wasn’t charging at all, they changed the charge control unit in the car. My Ohme charger is now tripping when I charge overnight, first time it happened I put it down to the severe weather at the time.

 

[johnb80]

Hi Chris, did you get to the bottom of this and find out why it was tripping? My car went in as it wasn’t charging at all, they changed the charge control unit in the car. My Ohme charger is now tripping when I charge overnight, first time it happened I put it down to the severe weather at the time.

There no reason that severe weather should cause it to trip.

When you say 'it's tripping' what is tripping - the charger itself with a message on the app or display? the MCB feeding it or an RCD device ? A photo of the consumer unit if it's an MCB or RCD that trips would be helpful.

 

[Chris Rob]

Hi Chris, did you get to the bottom of this and find out why it was tripping? My car went in as it wasn’t charging at all, they changed the charge control unit in the car. My Ohme charger is now tripping when I charge overnight, first time it happened I put it down to the severe weather at the time.

Hi
I got my car back from mg last week after 10 weeks,Not sure what they changed but apparently had to wait for parts and tech advice from China.It got to the point I couldn't charge mine at a public charger without it tripping that's when I realised it was the car.

 

[JannerKebab]

There no reason that severe weather should cause it to trip.

When you say 'it's tripping' what is tripping - the charger itself with a message on the app or display? the MCB feeding it or an RCD device ? A photo of the consumer unit if it's an MCB or RCD that trips would be helpful.

Tripping the RCD

Hi
I got my car back from mg last week after 10 weeks,Not sure what they changed but apparently had to wait for parts and tech advice from China.It got to the point I couldn't charge mine at a public charger without it tripping that's when I realised it was the car.

Cheers Chris, just hope it isn’t the car again

 

[Tig170]

same combination, no problems ever encountered here - as the Ohme unit is factory sealed, I suspect that you’ll need to contact the installer.

 

[Chris Rob]

Hi Chris, did you get to the bottom of this and find out why it was tripping? My car went in as it wasn’t charging at all, they changed the charge control unit in the car. My Ohme charger is now tripping when I charge overnight, first time it happened I put it down to the severe weather at the time.

Hi
I got my car back from mg last week after 10 weeks,Not sure what they changed but apparently had to wait for parts and tech advice from China.It got to the point I couldn't charge mine at a public charger without it tripping that's when I realised it was the car

Hi Chris, did you get to the bottom of this and find out why it was tripping? My car went in as it wasn’t charging at all, they changed the charge control unit in the car. My Ohme charger is now tripping when I charge overnight, first time it happened I put it down to the severe weather at the time.

 

[Big Bill Platypus]

My problems with EV5 home charging began 6 months after buying the car in March 2021. Granny charger works fine, Pod Point unit tripped out.
So Pod Point came back, changed the guts of the box, changed the lead, blamed the Consumer Unit, blamed the RCD, all waste of time - so I told Pod Piont to Pod Off and installed a Rolec unit (which has a 13a socket incorporated).
The Rolec worked fine for about 4 months then it too started tripping out. Thankfully I could plug in the granny charger.
So I spoke with MG Crawley - they checked the car - nothing wrong. Then I contacted UK Power Networks. They put a test on the supply to my house. They said the supply was within their parameters. Then they admitted those parameters have recently changed (2023-2024) due to the extent of power demand nationally - Grid Overload so to speak - too many people living in the UK!!

So the Government allowed UKPN to change the rules, so they could allow a supply fluctuation without being penalised for not supplying enough electricity at peak times.

Will this ever change I asked? Who knows they said. Buy another car and see how that ones goes!

Tonight, I plugged the car into the Rolec unit. Green light comes on, then trips to Blue (non-Charging) I stood there for 15 minutes and counted how many times the Rolec tried to charge the MG5 ... answer 100 times... on then off.... (where's an axe when you need one!). So now its stay there with good old Granny once more.
Thankfully I plan to change cars next February - yes to another Electric Car. I wonder how likely it will be that they'll let me take the new one home for 2 weeks testing on my home charge unit, because I'm damed if I'm putting up with this malarky for another 4 years!

 

[Tig170]

.. you just need a decent electriction who will spend the time to look at your system and diagnose your fault, sadly they are few and far between. If it helps I have 1960 wiring in my house (after a basic EICR), so have had the DNO (big earth on a new pole outside- droplink-TNCS?), smart meter fitter + EV charger fitter, all passed with ease

 

[Tr380r67]

Hi, I put my car on charge last night and discovered this morning it had tripped out. I have tried several times now but when the car locks in the plug it trips out the consumer unit. It has been fine for the last five months. OHME charging point. Has anyone had this problem?
Thanks
Chris

Unfortunately yes, both my brother and myself have 2023 MG4 TROPHY LRs.
We have the same charger and thought one has failed. As we are neighbours we swapped cars round to test and found it was the my brother's car at fault. We tried a rapid charger and it worked so we went to the dealership. They diagnosed a failed CCU (combined charge unit) which out of warranty would cost about £2000. They freely charged to car fully in their high speed charge to 270 mile range and said they would call when they had the part.They replaced it within 2 days and the car is now fine.
Many other manufacturers have had similar failures but if you check their experiences they've had to wait many weeks for a repair and not been under warranty. So in this case, well done MG, particularly Eric Stead of Sheffield MG for quick, professional and courteous response.

My problems with EV5 home charging began 6 months after buying the car in March 2021. Granny charger works fine, Pod Point unit tripped out.
So Pod Point came back, changed the guts of the box, changed the lead, blamed the Consumer Unit, blamed the RCD, all waste of time - so I told Pod Piont to Pod Off and installed a Rolec unit (which has a 13a socket incorporated).
The Rolec worked fine for about 4 months then it too started tripping out. Thankfully I could plug in the granny charger.
So I spoke with MG Crawley - they checked the car - nothing wrong. Then I contacted UK Power Networks. They put a test on the supply to my house. They said the supply was within their parameters. Then they admitted those parameters have recently changed (2023-2024) due to the extent of power demand nationally - Grid Overload so to speak - too many people living in the UK!!

So the Government allowed UKPN to change the rules, so they could allow a supply fluctuation without being penalised for not supplying enough electricity at peak times.

Will this ever change I asked? Who knows they said. Buy another car and see how that ones goes!

Tonight, I plugged the car into the Rolec unit. Green light comes on, then trips to Blue (non-Charging) I stood there for 15 minutes and counted how many times the Rolec tried to charge the MG5 ... answer 100 times... on then off.... (where's an axe when you need one!). So now its stay there with good old Granny once more.
Thankfully I plan to change cars next February - yes to another Electric Car. I wonder how likely it will be that they'll let me take the new one home for 2 weeks testing on my home charge unit, because I'm damed if I'm putting up with this malarky for another 4 years!

We had the same problem... Its probably nothing to do with your charger. The CCU had failed on our car. We could charge on the granny and fast public chargers but not the 77kwh 7 kW home charger. Was replaced freely under warranty... Normal cost around £2000.
Other manufacturers, including the main EV players, have all had similar problems. All I can say is thanks MG for having a long warranty.
Since my brother's was repaired we've had no problems from our two. We regularly do trips of over 230 miles with plenty of range leftover.

 

[johnb80]

We could charge on the granny and fast public chargers but not the 77kwh home charger.

That's a beefy home charger!

 

[Tr380r67]

Sorry meant 7 kW home charger .... I wish it was 77kW too!

 

[johnb80]

Sorry meant 7 kWh home charger .... I wish it was 77kwh too!

I was getting jealous

 

[Tr380r67]

Lol we have two ohm chargers ... One tethered and the other obviously untethered. We used to use the home app but we both now just use the MG app to control all charging. Proved to be much easier. These are our cars. You'll see the untethered one next to to door. A much neater everyday solution given its location. Mine is on the drive to the right but located down the side of the house.

 

[Rolfe]

Loads of people have had that CCU fault - there's a huge thread about it in the MG4 forum. All the affected cars seem to be phase 1 64 kWh models.

 

[johnb80]

Lol we have two ohm chargers ... One tether and the other obviously untethered. We used to use the home app but we both now just use the MG app to control all charging. Proved to be much easier. These are our cars. You'll see the untethered one next to to door. A much neater everyday solution given it's location. Mine is on the drive to the right but located down the side of the house.View attachment 27690

They are much neater for sure but a complete pain faffing about with cables, storing them away etc. Not ideal when it's raining etc.

 

[Tr380r67]

Thanks.for that .. so the phase 2 models don't appear to have any similar problems?
Just wondered as a relative is thinking of buying an MG4 TROPHY but Extended Range.
I assume no one has reported having to have the CCU replaced twice? The replacement has proved reliable?

 

[tsedge]

Thanks.for that .. so the phase 2 models don't appear to have any similar problems?
Just wondered as a relative is thinking of buying an MG4 TROPHY but Extended Range.
I assume no one has reported having to have the CCU replaced twice? The replacement has proved reliable?

So far no reports on Phase 2 models and no reports on ERs - but the fault took 9 months to show up on Phase 1 cars so it might just be a matter of time. That said Phase 2 cars have been around quite a while so far without issues.

Not heard of anyone having one replaced twice (due to two separate failures), but it is possible.

 

[Conrad3]

They are much neater for sure but a complete pain faffing about with cables, storing them away etc. Not ideal when it's raining etc.

No need to store away leave it plugged in at the charger end get a hose pipe bracket or similar then loop the other end round that put the protective cap over the end it’s what we do

 

[johnb80]

No need to store away leave it plugged in at the charger end get a hose pipe bracket or similar then loop the other end round that put the protective cap over the end it’s what we do

But then it wont look neater than a tethered unit as per Tr380r67's comments.

 

[Conrad3]

True but we weren’t sure that the install of the charger could go where we wanted it so if it had to go somewhere else we may have needed a longer than 8m lead so went with the epod just in case