diff --git a/FHEM/21_OWAD.pm b/FHEM/21_OWAD.pm
index fe7c75c1a..0807a175b 100644
--- a/FHEM/21_OWAD.pm
+++ b/FHEM/21_OWAD.pm
@@ -310,7 +310,7 @@ sub OWAD_Attr(@) {
         $hash->{INTERVAL} = $value;
         if ($init_done) {
           RemoveInternalTimer($hash);
-          InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWAD_GetValues", $hash, 1);
+          InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWAD_GetValues", $hash, 0);
         }
         last;
       };
@@ -751,7 +751,7 @@ sub OWAD_GetValues($) {
 
   #-- restart timer for updates
   RemoveInternalTimer($hash);
-  InternalTimer(time()+$hash->{INTERVAL}, "OWAD_GetValues", $hash, 1);
+  InternalTimer(time()+$hash->{INTERVAL}, "OWAD_GetValues", $hash, 0);
    
   #-- Get readings, alarms and stati according to interface type
   if( $interface eq "OWX" ){
@@ -935,7 +935,7 @@ sub OWAD_Set($@) {
     # update timer
     $hash->{INTERVAL} = $value;
     RemoveInternalTimer($hash);
-    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWAD_GetValues", $hash, 1);
+    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWAD_GetValues", $hash, 0);
     return undef;
   }
   
diff --git a/FHEM/21_OWCOUNT.pm b/FHEM/21_OWCOUNT.pm
index 858038854..b876e594c 100644
--- a/FHEM/21_OWCOUNT.pm
+++ b/FHEM/21_OWCOUNT.pm
@@ -1261,7 +1261,7 @@ sub OWCOUNT_Set($@) {
     # update timer
     $hash->{INTERVAL} = $value;
     RemoveInternalTimer($hash);
-    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWCOUNT_GetValues", $hash, 1);
+    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWCOUNT_GetValues", $hash, 0);
     return undef;
   }
   
diff --git a/FHEM/21_OWID.pm b/FHEM/21_OWID.pm
index 649daf84a..7bb2a6ddc 100644
--- a/FHEM/21_OWID.pm
+++ b/FHEM/21_OWID.pm
@@ -240,7 +240,7 @@ sub OWID_Attr(@) {
         $hash->{INTERVAL} = $value;
         if ($init_done) {
           RemoveInternalTimer($hash);
-          InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWID_GetValues", $hash, 1);
+          InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWID_GetValues", $hash, 0);
         }
         last;
       };
@@ -339,7 +339,7 @@ sub OWID_GetValues($) {
   
   #-- restart timer for updates
   RemoveInternalTimer($hash);
-  InternalTimer(time()+$hash->{INTERVAL}, "OWID_GetValues", $hash, 1);
+  InternalTimer(time()+$hash->{INTERVAL}, "OWID_GetValues", $hash, 0);
   
   #-- hash of the busmaster
   my $master       = $hash->{IODev};
@@ -408,7 +408,7 @@ sub OWID_Set($@) {
     # update timer
     $hash->{INTERVAL} = $value;
     RemoveInternalTimer($hash);
-    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWID_GetValues", $hash, 1);
+    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWID_GetValues", $hash, 0);
     return undef;
   }
 }
diff --git a/FHEM/21_OWTEMP.pm b/FHEM/21_OWTEMP.pm
index f527eab18..9258963a6 100644
--- a/FHEM/21_OWTEMP.pm
+++ b/FHEM/21_OWTEMP.pm
@@ -274,7 +274,7 @@ OWTEMP_GetUpdate($$)
     } else {
       $hash->{INTERVAL} = $hash->{INTV_ALARM};
     }
-    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWTEMP_GetUpdate", $hash, 1);
+    InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWTEMP_GetUpdate", $hash, 0);
   } else {
     return $value;
   }
diff --git a/FHEM/21_OWTHERM.pm b/FHEM/21_OWTHERM.pm
index 8a0112244..78bea6217 100755
--- a/FHEM/21_OWTHERM.pm
+++ b/FHEM/21_OWTHERM.pm
@@ -286,7 +286,7 @@ sub OWTHERM_Attr(@) {
 
         if ($init_done) {
           RemoveInternalTimer($hash);
-          InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWTHERM_GetValues", $hash, 1);
+          InternalTimer(gettimeofday()+$hash->{INTERVAL}, "OWTHERM_GetValues", $hash, 0);
         }
         last;
       };