AN EMBRAER JET FO RPTS CHRONIC #2 BLEED WARNING; 3 TIMES IN 3 HRS AND 4 TIMES IN 2 DAYS; ALL SIGNED OFF WITH 'CHKS OK; UNABLE TO DUPLICATE.'

Narrative

2 DAYS PRIOR TO OUR ACCEPTANCE OF ACFT; ACFT HAD WRITE-UP FOR BLEED #2 LEAK IN CLBOUT. AFTER BOARDING AND PRIOR TO PUSHBACK; WE RECEIVED EICAS BLEED #2 LEAK AND LEAK LIGHT IN ENG #2 BLEED SELECTOR SWITCH. CONFIGN WAS BOTH ENG BLEEDS CLOSED; APU BLEED OPEN; XBLEED OPEN; BOTH PACKS ON; NO ENGS RUNNING; APU RUNNING. WE CALLED MAINT AND PUT IN AML (ACFT MAINT LOG). MAINT CAME TO ACFT AND FROM THE BEGINNING; BOTH CAPT AND MYSELF FELT MAINT PERSONNEL WERE DISTR AND DID NOT SEEM INTERESTED IN SOLVING OUR PROB. WE HAD COMPLIED WITH EPC AND AOM CHKLISTS. APPROX 2 MINS AFTER COMPLETING CHKLIST; WARNING WENT AWAY. MAINT FELT THIS WAS ACCEPTABLE AND RETURNED ACFT TO SVC WITH OPS CHK OK ENTRY. WHILE; MAINT WAS STILL IN COCKPIT WITH SAME CONFIGN AS ABOVE; WE. AGAIN RECEIVED BLEED #2 LEAK WARNING. AGAIN WE COMPLIED WITH ALL CHKLISTS. MAINT TOOK POSSESSION OF ACFT FOR APPROX 1.5 HRS AND RETURNED IT TO US; AGAIN WITH OPS CHKS OK; COULD NOT DUPLICATE ENTRY. 10 MINS AFTER WE TOOK POSSESSION OF ACFT; WHILE STILL AT GATE; BLEED #2 LEAK MESSAGE APPEARED AGAIN -- THIRD TIME IN 2 HRS. OUR FLT WAS CANCELLED. NEXT MORNING; CAPT REPOSITIONED ACFT TO ZZZ1. MAINT CORRECTIVE ACTION WAS AGAIN 'OPS CHKS OK -- COULD NOT DUPLICATE.' THIS SEEMS COMPLETELY UNACCEPTABLE TO HAVE THE SAME WARNING 3 TIMES IN 3 HRS; 4 TIMES IN 2 DAYS AND HAVE THE CORRECTIVE ACTION BE 'COULD NOT DUPLICATE.' I WOULD LIKE THE FAA'S OPINION IF OUR MAINT PROCS ARE PROPER.