diff --git a/fhem/CHANGED b/fhem/CHANGED
index bf1873078..4060fd2fb 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+ - bugfix:  98_WeekdayTimer: fix timer admin
  - change:  10_WS980: fix num vs. string
  - change:  55_DWD_OpenData: logging (forum #83097 msg #1114070)
  - feature: 74_Unifi: get deviceData hinzugefügt
diff --git a/fhem/FHEM/98_WeekdayTimer.pm b/fhem/FHEM/98_WeekdayTimer.pm
index 0bfb7ade6..392e237c1 100644
--- a/fhem/FHEM/98_WeekdayTimer.pm
+++ b/fhem/FHEM/98_WeekdayTimer.pm
@@ -141,8 +141,12 @@ sub WeekdayTimer_Define {
 
   addToDevAttrList($name, "weekprofile") if $def =~ m{weekprofile}xms;
   
-  return InternalTimer(time(), \&WeekdayTimer_Start,$hash,0) if !$init_done;
-  return WeekdayTimer_Start($hash);
+  if (!$init_done) { 
+    InternalTimer(time(), \&WeekdayTimer_Start,$hash,0) ;
+    return;
+  }
+  WeekdayTimer_Start($hash);
+  return; 
 }
 
 ################################################################################
@@ -757,13 +761,14 @@ sub WeekdayTimer_GlobalDaylistSpec {
 sub WeekdayTimer_SetTimerForMidnightUpdate {
   my $fnHash = shift;
   my $hash = $fnHash->{HASH} // $fnHash;
-  return if (!defined($hash));
+  return if !defined($hash);
 
   my $now = time();
   my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($now);
 
   my $midnightPlus5Seconds = getSwitchtimeEpoch  ($now, 0, 0, 5, 1);
-  resetRegisteredInternalTimer("SetTimerOfDay", $midnightPlus5Seconds, \&WeekdayTimer_SetTimerOfDay, $hash, 0);
+  RemoveInternalTimer($hash,\&WeekdayTimer_SetTimerOfDay);
+  InternalTimer($midnightPlus5Seconds, \&WeekdayTimer_SetTimerOfDay, $hash, 0) if !AttrVal($hash->{NAME},"disable",0);
   $hash->{SETTIMERATMIDNIGHT} = 1;
   
   return;
@@ -774,7 +779,7 @@ sub WeekdayTimer_SetTimerOfDay {
   my $fnHash = shift // return;
   my $hash = $fnHash->{HASH} // $fnHash;
   return if (!defined($hash));
-
+  
   my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time());
   my $secSinceMidnight = 3600*$hour + 60*$min + $sec;
 
@@ -812,12 +817,12 @@ sub WeekdayTimer_SetTimerOfDay {
     }
   }
   $hash->{helper}{WEDAYS} = \%wedays;
-  $hash->{SETTIMERATMIDNIGHT} = $fnHash->{SETTIMERATMIDNIGHT}; WeekdayTimer_DeleteTimer($hash);
+  $hash->{SETTIMERATMIDNIGHT} = $fnHash->{SETTIMERATMIDNIGHT}; 
+  WeekdayTimer_DeleteTimer($hash);
   WeekdayTimer_Profile    ($hash);
-  WeekdayTimer_SetTimer   ($hash);
+  WeekdayTimer_SetTimer   ($hash) if !AttrVal($hash->{NAME},"disable",0);
   delete $hash->{SETTIMERATMIDNIGHT};
-  $fnHash = { HASH => $hash };
-  WeekdayTimer_SetTimerForMidnightUpdate( $fnHash );
+  WeekdayTimer_SetTimerForMidnightUpdate( $hash );
   return;
 }
 
@@ -932,7 +937,6 @@ sub WeekdayTimer_delayedTimerInPast {
       Log3( $hash, 4, "[$hash->{NAME}] $device ".FmtDateTime($time)." ".($tim-$time)."s " );
 
       for my $para ( @{$tipIpHash->{$device}{$time}} ) {
-        #WeekdayTimer_RemoveInternalTimer(@$para[0], @$para[3]);
         my $mHash = resetRegisteredInternalTimer(@$para[0],@$para[1],@$para[2],@$para[3],@$para[4]);
         $mHash->{forceSwitch} = 1;
       }
@@ -1039,7 +1043,6 @@ sub WeekdayTimer_Update {
     $activeTimer      = isAnActiveTimer ($hash, $dieGanzeWoche, $newParam, $overrulewday);
     $activeTimerState = isAnActiveTimer ($hash, $tage, $newParam, $overrulewday);
     Log3( $hash, 4, "[$name] Update   - past timer activated" );
-    #WeekdayTimer_RemoveInternalTimer("$idx",  $hash);
     resetRegisteredInternalTimer("$idx", $timToSwitch, \&WeekdayTimer_Update, $hash, 0) if ($timToSwitch > $now && ($activeTimerState||$activeTimer));
   } else {
     $activeTimer = isAnActiveTimer ($hash, $tage, $newParam, $overrulewday);
@@ -1169,7 +1172,6 @@ sub checkDelayedExecution {
       deleteSingleRegisteredInternalTimer($hash->{VERZOEGRUNG_IDX},$hash);
     }
     $hash->{VERZOEGRUNG_IDX} = $time;
-    #WeekdayTimer_RemoveInternalTimer("$time",  $hash);
     resetRegisteredInternalTimer("$time",  $nextRetry, \&WeekdayTimer_Update, $hash, 0);
     $hash->{VERZOEGRUNG} = 1;
     return $verzoegerteAusfuehrung;
@@ -1225,7 +1227,6 @@ sub checkDelayedExecution {
                 deleteSingleRegisteredInternalTimer($hash->{VERZOEGRUNG_IDX},$hash);
               }
               $hash->{VERZOEGRUNG_IDX} = $time;
-              #WeekdayTimer_RemoveInternalTimer("$time", $hash);
               resetRegisteredInternalTimer("$time",  $nextRetry, \&WeekdayTimer_Update, $hash, 0);
               $hash->{VERZOEGRUNG} = 1;
               return 1
@@ -1358,22 +1359,26 @@ sub WeekdayTimer_Attr {
       delete $hash->{WDT_EVENTMAP};
     }
     $attr{$name}{$attrName} = $attrVal;
+    return if (!$init_done);
+    return WeekdayTimer_Start($hash);
   }
   return if (!$init_done);
   if( $attrName eq "disable" ) {
+    WeekdayTimer_DeleteTimer($hash);
+    ###RemoveInternalTimer($fnHash);
     readingsSingleUpdate ($hash,  "disabled",  $attrVal, 1);
-    return WeekdayTimer_SetTimerOfDay({ HASH => $hash}) if !$attrVal;
-  } 
-  if ( $attrName eq "enable" ) {
-    return WeekdayTimer_SetTimerOfDay({ HASH => $hash});
+    $attr{$name}{$attrName} = $attrVal;
+    return RemoveInternalTimer($hash,\&WeekdayTimer_SetTimerOfDay) if $attrVal;
+    return WeekdayTimer_Start($hash);
+    #return WeekdayTimer_SetTimerOfDay( { HASH => $hash} ) if !$attrVal;
   }
   if ( $attrName eq "weekprofile" ) {
     $attr{$name}{$attrName} = $attrVal;
-    return WeekdayTimer_Start($hash);
+    #return WeekdayTimer_Start($hash);
   } 
   if ( $attrName eq "switchInThePast" ) {
     $attr{$name}{$attrName} = $attrVal;
-    return WeekdayTimer_SetTimerOfDay({ HASH => $hash});
+    return WeekdayTimer_Start($hash);
   }
   if ( $attrName eq "delayedExecutionCond" ) {
     my %specials = (
@@ -1392,7 +1397,7 @@ sub WeekdayTimer_Attr {
       return "WDT_sendDelay is limited to 300 seconds" if $attrVal > 300;
     }
     $attr{$name}{$attrName} = $attrVal;
-    return WeekdayTimer_SetTimerOfDay({ HASH => $hash});
+    return WeekdayTimer_Start($hash);
   }
   
   return;