diff --git a/ioBroker/DEV/NSPanelTs.ts b/ioBroker/DEV/NSPanelTs.ts
index 2380eaad..4647a166 100644
--- a/ioBroker/DEV/NSPanelTs.ts
+++ b/ioBroker/DEV/NSPanelTs.ts
@@ -2309,11 +2309,15 @@ async function InitDimmode() {
             };
             // timeDimMode Day
             scheduleInitDimModeDay = adapterSchedule({ hour: getState(NSPanel_Path + 'NSPanel_Dimmode_hourDay').val, minute: 0 }, 24 * 60 * 60, () => {
-                ScreensaverDimmode(timeDimMode);
+                if (getState(NSPanel_Path + 'ScreensaverInfo.activeDimmodeBrightness').val != null && getState(NSPanel_Path + 'ScreensaverInfo.activeDimmodeBrightness').val != -1) {
+                    ScreensaverDimmode(timeDimMode);
+                }
             });
             // timeDimMode Night
             scheduleInitDimModeNight = adapterSchedule({ hour: getState(NSPanel_Path + 'NSPanel_Dimmode_hourNight').val, minute: 0 }, 24 * 60 * 60, () => {
-                ScreensaverDimmode(timeDimMode);
+                if (getState(NSPanel_Path + 'ScreensaverInfo.activeDimmodeBrightness').val != null && getState(NSPanel_Path + 'ScreensaverInfo.activeDimmodeBrightness').val != -1) {
+                    ScreensaverDimmode(timeDimMode);
+                }
             });
             if (getState(NSPanel_Path + 'ScreensaverInfo.activeDimmodeBrightness').val != null && getState(NSPanel_Path + 'ScreensaverInfo.activeDimmodeBrightness').val != -1) {
                 SendToPanel({