diff --git a/src/OpenThermTask.h b/src/OpenThermTask.h
index 1fb30ff..f37bc80 100644
--- a/src/OpenThermTask.h
+++ b/src/OpenThermTask.h
@@ -687,19 +687,17 @@ protected:
       targetMaxModulation = settings.dhw.maxModulation;
     }
 
-    if (vars.slave.modulation.max != targetMaxModulation) {
-      if (this->setMaxModulationLevel(targetMaxModulation)) {
-        Log.snoticeln(
-          FPSTR(L_OT), F("Set max modulation: %hhu%% (response: %hhu%%)"),
-          targetMaxModulation, vars.slave.modulation.max
-        );
+    if (this->setMaxModulationLevel(targetMaxModulation)) {
+      Log.snoticeln(
+        FPSTR(L_OT), F("Set max modulation: %hhu%% (response: %hhu%%)"),
+        targetMaxModulation, vars.slave.modulation.max
+      );
 
-      } else {
-        Log.swarningln(
-          FPSTR(L_OT), F("Failed set max modulation: %hhu%% (response: %hhu%%)"),
-          targetMaxModulation, vars.slave.modulation.max
-        );
-      }
+    } else {
+      Log.swarningln(
+        FPSTR(L_OT), F("Failed set max modulation: %hhu%% (response: %hhu%%)"),
+        targetMaxModulation, vars.slave.modulation.max
+      );
     }
 
     // Update modulation level
diff --git a/src/Settings.h b/src/Settings.h
index d870af5..f939fbf 100644
--- a/src/Settings.h
+++ b/src/Settings.h
@@ -328,7 +328,7 @@ struct Variables {
     struct {
       uint8_t current = 0;
       uint8_t min = 0;
-      uint8_t max = 0;
+      uint8_t max = 100;
     } modulation;
 
     struct {