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Can you replace just the RCD, instead of whole consumer unit?

Former Community Member
Former Community Member
My apartment failed it's EICR due to the electrician not being able to trip the RCD in the required time.  I am told that the RCD cannot be replaced and a new metal consumer unit must be installed at a quote of £1180.  The apartment was built in 2003 and seems overly wasteful to ditch the whole unit, however I am not an electrician so would welcome some guidance please before I commit to this remedial action.


This is the RCD currently fitted:
5760S | MK 63 A RCD Switch, Trip Sensitivity 30mA | RS Components (rs-online.com)


It appears it worked within spec for above 30mA, but failed for below, if that helps with whether the whole consumer unit must be replaced.  See report.
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    If you go back to the schedule of test results every circuit that did get tested, including the socket circuits have perfect insulation test results.


    But the RCD has been taken out of the circuit, so it would be really interesting to read the observations recorded on the EICR.


    Maybe the RCD is faulty, but I suspect that it could not be reset after tripping because of a fault that has not been cleared. Whatever the problem was it should have been fixed and not left like that.
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    If you go back to the schedule of test results every circuit that did get tested, including the socket circuits have perfect insulation test results.


    But the RCD has been taken out of the circuit, so it would be really interesting to read the observations recorded on the EICR.


    Maybe the RCD is faulty, but I suspect that it could not be reset after tripping because of a fault that has not been cleared. Whatever the problem was it should have been fixed and not left like that.
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