Hello everybody! GC MS (7000C triple quad) shows error "1.17 MS1 RF driver cannot maintain the requested mass setting" when we perform EI high sensitivity autotune and ms goes to standby mode. We finally performed autotune after repeated 5-6 attemps of starting autotune. To solve this problem we replaced filament, changed calibrant, cleaned ion source, but no result. Quick tune is going well without any problem, but autotune is not ok. We have noticed that autotune could be performed after 5-6 attemps in temperature 230C, but in temperature of ion source 280C autotune is impossible, giving error "ms1 driver" as above from the beginning of autotune process. Who knows how to fix this problem? Thank you!