I have installed a new Eaton BR240 (40A) GFCI Breaker. It is staying on for a while but can trip after several minutes or stay on for hours. The while indicator lights flash (4 times) which according to the Eaton website indicates a "High Level ground fault".
Pretty sure the GFCI is grounded correctly. Can anyone offer any suggestion as to how I can fix this issue?
thanks,
KR