Electron Capture Detector Output 862926,5

Hello guys, I had a problem with my ECD detector on 7890B GC, output is 862926,5. I have tried these procedures: 1) Reconfigure ECD 2) Bake out of ECD 3) Defect checking (Electrometer, EPC module, ECD signal board- not injured) 4) Checking connection ( reconnect cables, checking the cable for a defect) Even if I remove EPC module and Electrometer connection, the output was not 0 ....it was still 862926 Please help me with this problem Thank you !!!

Equipment: Agilent GC-7890B