The dreaded crossfire-e power cut – FIXED!

I’ve held off updating the blog with the fix for the power cut-out on the Carrera Crossfire-E, I wanted to be sure that I wasn’t just fooling myself and to make sure it stays fixed. 300 miles later and I’ve had zero cut outs.  

Way way back in April 2016 when I got this bike and experienced my first power cut I noticed that a zip-tie was around the cable and the frame. But just before going on my holiday to Fort William I gave my baby a damn good clean and service. During the service I removed the rear wheel and chain for a really deep clean, then reattached everything and put on a new zip-tie, a green one.

I never thought twice about it, I didn’t even consider where to put it, I just assumed the loop was there for the zip-tie and that was that, until I was well over a hundred miles and I thought “hmm, that’s strange, I’ve had no power cuts.”

So since then I’ve managed another 200 miles and still no power cut, not one… Of course now I’ve said that I’ll probably have no end of them.

I will investigate this further next summer, I’ll cut the green tie and replace it back in the original position. But for now I think the green zip-tie is pushing the barrels together and that’s stopped the power cut.

So give it a try and let me know how you get on. 


Edit: Rumour has it that the 2017 model has dodgy connections on the LCD display, this can be a cause of power-cuts too, mine is a 2016 model and has a different LCD.

Fix the power cut once and for all

connector barrel

About The Bionic Cyclist

I am a keen technophile and have been since I was a kid. I was amazed when one of my friends invented the wheel, and I've been nuts about technology ever since.

Do not go gentle into that good night,
Old age should burn and rave at close of day;
Rage, rage against the dying of the light.

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Dylan Thomas, 1914 - 1953

Do not go gentle into that good night,
Old age should burn and rave at close of day;
Rage, rage against the dying of the light.

Though wise men at their end know dark is right,
Because their words had forked no lightning they
Do not go gentle into that good night.

Good men, the last wave by, crying how bright
Their frail deeds might have danced in a green bay,
Rage, rage against the dying of the light.

Wild men who caught and sang the sun in flight,
And learn, too late, they grieved it on its way,
Do not go gentle into that good night.

Grave men, near death, who see with blinding sight
Blind eyes could blaze like meteors and be gay,
Rage, rage against the dying of the light.

And you, my father, there on the sad height,
Curse, bless, me now with your fierce tears, I pray.
Do not go gentle into that good night.
Rage, rage against the dying of the light.

21 thoughts on “The dreaded crossfire-e power cut – FIXED!

  1. Pingback: Carrera Crossfire-E Electric bike – Power Cut – The Bionic Cyclist E-Bike Rider

  2. I’m watching this Power Cutout test you have posted – im tempted to buy this bike (for my main 20mile -40 mile return- commute) but holding back for this one remaining issue.

  3. I had a chat in Halfords today about the cut outs – the guy was quite open about it and said yes it was a problem, but he had heard that on the production line there was some process (he did explain but I cant remember exactly what he said) relating to the connections where too much “grease” was being applied and they had identified the issue and this had been changed. This year he has had 2 Bikes back compared to more then this last year. Cleaning the contacts with a ethanol or contact cleaner did seem to resolve many of the issues.

    • Hey Darren, give it a shot and get back to me please.

      I admit I’ve had 2 cut-outs since and one of them was due to the zip tie coming off, so, so far I’ve done around 500 miles and only 2 cut-outs… not too shabby eh πŸ™‚

      • Yes that’s great mate I done it today I can understand the logic in it when I pulled the Velcro off this morning I could see that the connector had separated by a mill or so I really think that is the cut out issue I knew it would be something simple

  4. Pingback: Carrera Crossfire-E Electric Bike Review – The Bionic Cyclist E-Bike Rider

  5. Pingback: Carrera Crossfire-E 12 month re-review – The Bionic Cyclist E-Bike Rider

  6. Last April my wife and I bought two e bikes. My wife’s a Crossfire ladies’ bike where mine was a more butch looking Vulcan, Her bike cut out about 35 miles but was then ok for another 250miles. but then it did it again and again. Mine was ok. Halfords were at a loss and replaced her bike. Great service. Last Saturday morning, after over 600miles, shock horror. Mine cut out as I started filming my Tandle Hill park video on YouTube. I started filming again. On Monday morning, my wifes replacement bike cut out after only 56miles!… I will check the zip ties and let you know, Cheers.

    • Hey Derek, sorry about the cut outs, I hope my zip tie fix works for you, but if you have the newer (miles per hour instead of KMH) model then the pins behind the LCD can wear a little and might need to be pushed up ever so gently to make better contact.
      Let me know how you get on, and please post a link to your video, I love to see other riders enjoying their bikes!

      To be honest I’ve had nothing but great service from Halfords, they even swapped my older KMH LCD to MPH for FREE!
      The Bionic Cyclist

  7. My bike was stolen I’ve since got it back but it’s been badly used and it’s computer is broke where can I get a new one .The bike is 2 yesrs old

    • Hi Ray, that sucks. But at least you did get it back πŸ™‚
      I think the only place to get a new LCD (I assume you mean LCD/trip computer) is Halfords, I tried to buy a new one from SRSuntour and they sent me to Halfords, so even the manufacturer doesn’t sell to the public.
      If it’s within the 2 year warranty then they might just get you a new one for free.

      Get a new bike lock while you’re there, and remember to use it.
      Good luck and please let me know how you get on.

  8. After assurances from Halfords that the Crossfire’s cut out issue had been resolved on the Vulcan E I bought the latter in late March 2017. It cut out 3 times on the first 3 rides and was returned to Halfords and replaced in early April 2017 ( re: my review on Halfords website 30 March 2017 suggested the fault probably lay with the lose LCD base which which allowed the screen to jiggle about when riding).

    I have kept a log of all rides since April 2017 and any problems experienced. To date 160 rides and 1400 miles resulted in 17 cutouts (not including multiple cutouts during the same ride) plus 2 power losses showing an E21 error display The E21 resulted from torque sensor issues and two replacements torque sensors and cranks were fitted few months apart. I have kept Halfords informed of all issues as they have arisen.
    Halfords store staff and Customer Services have proved to be excellent at helping me to try and resolve the Vulcan’s issues and have replaced parts as required. The latest cutouts a few weeks ago resulted in the bike being returned to Moor & Large ( the supplier in Derby) for diagnostic tests and a replacement rear wheel + motor received at Halfords yesterday.
    I tested the Vulcan today and all seems fine so far except that Moore & Large had fitted the tyre on the wrong way round ( the tyre has direction arrows marked).
    Halfords fitted ties through the loops either side of the hub/battery connectors but not the leads. Additionally I have wrapped a narrow length of an old inner tube around these connectors at their ‘join’ and used rubber adhesive to hold in place. The connector join is now very snug and secure.

    The Vulcan E, imo, is a good budget priced e-bike and should reward its owner with a decent durable life if treated accordingly. It is only a matter of time before these cut out issues are finally resolved by Halfords with relevant feed back from their customers.

    I will now continue to test ride the bike over a reasonable period time and see what transpires!

    • I can’t help but think that some people have just been unlucky, it sounds like you might be one of them.

      I understand that budget ebikes will suffer from various problems, but everyone has mentioned powercuts at some time or other.

      I’m not sure how competent you are at bike repairs but it might be worth checking every component in the electrical system. Even the battery contacts.

      I’ve read and heard that the new MPH LCD might even be a part of the problem, mine is fine, the only problem I had is the one mentioned above.

      Please keep me informed MTBiker and let me know if you eventually fix the problem.

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