Oil drip at flare nut connected to oil pump. Tightened flare nut and let system run for 25 minutes. Drip has stopped after tightening flare nut. Took pictures and video of unit running with no leak. Let system run through 2 cycles with no more drip or leak from flare connection. We were here in November and did work around where leak is coming from. We replaced filter strainer and nozzle and leak/drip is from that area. Customer stated he did not have leak before repairs. No diagnostic as it pertains to previous work done by us.