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Waterblaster trips an RCD?

Karcher 620m runs for e.g. A split second, sometimes 1 second, then trips a separate RCD. Is this a wiring fault in the motor? The on/off switch internals look ok. I have had it running for several seconds, but when out back together this fault returns.
Dave radford, November 2015
Find someone who understands electricity and check each part fo rearth leakage. Whe n you fin dthe part consider replacing the part of if it would be cheaper to replace the Karcher.

XXXXX, November 2015
link Click here to see other fixes for Karcher.