diff --git a/lib/CronScheduler.js b/lib/CronScheduler.js
index acc3fb4a..753470ed 100644
--- a/lib/CronScheduler.js
+++ b/lib/CronScheduler.js
@@ -14,7 +14,7 @@ const CronScheduler = function (parameters) {
         }
         // todo: add some more validation maybe
         let task = cron.schedule(job[2], () => {
-            this.vacuum.getCurrentStatus(function (err, data) {
+            self.vacuum.getCurrentStatus(function (err, data) {
                 // running ONLY when state = 8 (charging)
                 if (!err && data && data.state === 8) {
                     self.vacuum.startCleaningZone(job[3], function (err, data) {
@@ -28,40 +28,40 @@ const CronScheduler = function (parameters) {
                     console.log('scheduled zoned cleaning start failed', err, data);
                 }
             });
-        },{timezone: this.timezone});
-        this.schedules.push(task);
+        },{timezone: self.timezone});
+        self.schedules.push(task);
         return true;
     };
 
     this.removeSchedule = function(index) {
-        if (this.schedules[index]) {
-            let task = this.schedules[index];
+        if (self.schedules[index]) {
+            let task = self.schedules[index];
             task.destroy();
-            this.schedules.splice(index, 1);
+            self.schedules.splice(index, 1);
             return true;
         }
         return false;
     };
 
     this.resetSchedules = function() {
-       for (let i = this.schedules.length - 1; i >= 0 ; i--) {
-           this.removeSchedule(i);
+       for (let i = self.schedules.length - 1; i >= 0 ; i--) {
+           self.removeSchedule(i);
        }
-       this.configuration.get("ztimers").forEach(task => {
-           this.createSchedule(task);
+       self.configuration.get("ztimers").forEach(task => {
+           self.createSchedule(task);
        });
     };
 
-    this.vacuum.getTimezone(function (err, data) {
-        if (!err) {
-            self.timezone = data;
-        }
-        if (self.configuration.get("ztimers") && self.configuration.get("ztimers").length) {
-            self.configuration.get("ztimers").forEach(job => {
-                self.createSchedule(job);
-            });
-        };
-    });
+    this.initSchedules = function() {
+        self.vacuum.getTimezone(function (err, data) {
+            if (!err) {
+                self.timezone = data;
+            }
+            self.resetSchedules();
+        });
+    };
+    
+    setTimeout(() => { self.initSchedules() }, 30e3);
 };
 
 module.exports = CronScheduler;