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Dr Steve Myers, a director of the European Organization for Nuclear Research (CERN), which built the collider, said the machine will close at the end of a 2011.
The collider is expected to reach world record power later this month at 7 trillion electron volts (TeV) in its bid to replicate the big bang that started the universe. But Dr Myers told the BBC that the faults will delay the machine reaching its full potential of 14TeV for two years.
"It's something that, with a lot more resources and with a lot more manpower and quality control, possibly could have been avoided but I have difficulty in thinking that this is something that was a design error," he said.
"The standard phrase is that the LHC is its own prototype. We are pushing technologies towards their limits." "You don't hear about the thousands or hundreds of thousands of other areas that have gone incredibly well.
"With a machine like the LHC, you only build one and you only build it once."
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