20 Nov 96 Posted at 00:30h in Technical Soporte by 0 Likes Symptom: MGTC-20, DXTC-20, DXTH-20 – ERROR CODE FA Solution: REPLACE THE OUTDOOR UNIT PCB Cause: COMPRESSOR PHASE CURRENT TEST CIRCUIT FAILURE Remarks: DESCRIPTION: 1.65V BIAS VOLTAGE OF THE AMPLIFYING CICUIT FOR THE COMPRESSOR PHASE CURRENT TESTS ABNORMAL. REPAIR: 1) PLEASE REPLACE THE OUTDOOR UNIT PCB