I press the test button on my power unit & it isolated the power when I came to switch the power back on it wouldn't.
Can a test switch jam?
Can a test switch jam?
Its fixed all I had to do was to pull all the plugs out of there sockets & reset. Thanks for all your help, Happy daysDon't know about RCD's but MCB's when they trip only drop the lever half way down, it won't then reset if pushed back up from this position, it has to first be pushed all the way down and then back up.