diff --git a/lib/Hoymiles/src/parser/AlarmLogParser.cpp b/lib/Hoymiles/src/parser/AlarmLogParser.cpp
index bad5ccfdf..10ed30528 100644
--- a/lib/Hoymiles/src/parser/AlarmLogParser.cpp
+++ b/lib/Hoymiles/src/parser/AlarmLogParser.cpp
@@ -96,6 +96,7 @@ AlarmLogParser::AlarmLogParser()
 {
     _xSemaphore = xSemaphoreCreateMutex();
     HOY_SEMAPHORE_GIVE(); // release before first use
+    clearBuffer();
 }
 
 void AlarmLogParser::clearBuffer()
diff --git a/lib/Hoymiles/src/parser/DevInfoParser.cpp b/lib/Hoymiles/src/parser/DevInfoParser.cpp
index fd22b0746..5ac187fb8 100644
--- a/lib/Hoymiles/src/parser/DevInfoParser.cpp
+++ b/lib/Hoymiles/src/parser/DevInfoParser.cpp
@@ -56,6 +56,8 @@ DevInfoParser::DevInfoParser()
 {
     _xSemaphore = xSemaphoreCreateMutex();
     HOY_SEMAPHORE_GIVE(); // release before first use
+    clearBufferSimple();
+    clearBufferAll();
 }
 
 void DevInfoParser::clearBufferAll()
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.cpp b/lib/Hoymiles/src/parser/StatisticsParser.cpp
index 2cbf9c846..2218ca4b1 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.cpp
+++ b/lib/Hoymiles/src/parser/StatisticsParser.cpp
@@ -38,6 +38,7 @@ StatisticsParser::StatisticsParser()
 {
     _xSemaphore = xSemaphoreCreateMutex();
     HOY_SEMAPHORE_GIVE(); // release before first use
+    clearBuffer();
 }
 
 void StatisticsParser::setByteAssignment(const byteAssign_t* byteAssignment, uint8_t size)
diff --git a/lib/Hoymiles/src/parser/SystemConfigParaParser.cpp b/lib/Hoymiles/src/parser/SystemConfigParaParser.cpp
index b2598e19f..2756e1ec8 100644
--- a/lib/Hoymiles/src/parser/SystemConfigParaParser.cpp
+++ b/lib/Hoymiles/src/parser/SystemConfigParaParser.cpp
@@ -16,6 +16,7 @@ SystemConfigParaParser::SystemConfigParaParser()
 {
     _xSemaphore = xSemaphoreCreateMutex();
     HOY_SEMAPHORE_GIVE(); // release before first use
+    clearBuffer();
 }
 
 void SystemConfigParaParser::clearBuffer()