diff --git a/src/core/atcore.cpp b/src/core/atcore.cpp
--- a/src/core/atcore.cpp
+++ b/src/core/atcore.cpp
@@ -307,11 +307,7 @@
     if (newTime != d->serialTimer.interval()) {
         emit serialTimerIntervalChanged(newTime);
     }
-    if (newTime == 0) {
-        d->serialTimer.stop();
-    } else {
-        d->serialTimer.start(newTime);
-    }
+    d->serialTimer.start(newTime);
 }
 
 int AtCore::temperatureTimerInterval() const
@@ -325,11 +321,7 @@
     if (newTime != d->temperatureTimer.interval()) {
         emit temperatureTimerIntervalChanged(newTime);
     }
-    if (newTime == 0) {
-        d->temperatureTimer.stop();
-    } else {
-        d->temperatureTimer.start(newTime);
-    }
+    d->temperatureTimer.start(newTime);
 }
 
 void AtCore::newMessage(const QByteArray &message)