diff --git a/lib/Hoymiles/src/Hoymiles.h b/lib/Hoymiles/src/Hoymiles.h
index 57979553..04d16caf 100644
--- a/lib/Hoymiles/src/Hoymiles.h
+++ b/lib/Hoymiles/src/Hoymiles.h
@@ -28,7 +28,7 @@ private:
     std::vector<std::shared_ptr<InverterAbstract>> _inverters;
     std::unique_ptr<HoymilesRadio> _radio;
 
-    uint32_t _pollInterval;
+    uint32_t _pollInterval = 0;
     uint32_t _lastPoll = 0;
 };
 
diff --git a/lib/Hoymiles/src/HoymilesRadio.h b/lib/Hoymiles/src/HoymilesRadio.h
index 0ffee373..b382c048 100644
--- a/lib/Hoymiles/src/HoymilesRadio.h
+++ b/lib/Hoymiles/src/HoymilesRadio.h
@@ -75,12 +75,12 @@ private:
     std::unique_ptr<SPIClass> _hspi;
     std::unique_ptr<RF24> _radio;
     uint8_t _rxChLst[5] = { 3, 23, 40, 61, 75 };
-    uint8_t _rxChIdx;
+    uint8_t _rxChIdx = 0;
 
     uint8_t _txChLst[5] = { 3, 23, 40, 61, 75 };
-    uint8_t _txChIdx;
+    uint8_t _txChIdx = 0;
 
-    volatile bool _packetReceived;
+    volatile bool _packetReceived = false;
 
     CircularBuffer<fragment_t, FRAGMENT_BUFFER_SIZE> _rxBuffer;
     TimeoutHelper _rxTimeout;
diff --git a/lib/Hoymiles/src/inverters/InverterAbstract.h b/lib/Hoymiles/src/inverters/InverterAbstract.h
index e863cf0c..d2a75c3f 100644
--- a/lib/Hoymiles/src/inverters/InverterAbstract.h
+++ b/lib/Hoymiles/src/inverters/InverterAbstract.h
@@ -47,7 +47,7 @@ public:
 
 private:
     serial_u _serial;
-    char _name[MAX_NAME_LENGTH];
+    char _name[MAX_NAME_LENGTH] = "";
     fragment_t _rxFragmentBuffer[MAX_RF_FRAGMENT_COUNT];
     uint8_t _rxFragmentMaxPacketId = 0;
     uint8_t _rxFragmentLastPacketId = 0;
diff --git a/lib/Hoymiles/src/parser/DevInfoParser.h b/lib/Hoymiles/src/parser/DevInfoParser.h
index f897d35f..001dbed4 100644
--- a/lib/Hoymiles/src/parser/DevInfoParser.h
+++ b/lib/Hoymiles/src/parser/DevInfoParser.h
@@ -30,9 +30,9 @@ private:
     uint32_t _lastUpdateAll = 0;
     uint32_t _lastUpdateSample = 0;
 
-    uint8_t _payloadDevInfoAll[DEV_INFO_SIZE];
-    uint8_t _devInfoAllLength;
+    uint8_t _payloadDevInfoAll[DEV_INFO_SIZE] = {};
+    uint8_t _devInfoAllLength = 0;
 
-    uint8_t _payloadDevInfoSample[DEV_INFO_SIZE];
-    uint8_t _devInfoSampleLength;
+    uint8_t _payloadDevInfoSample[DEV_INFO_SIZE] = {};
+    uint8_t _devInfoSampleLength = 0;
 };
\ No newline at end of file
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.h b/lib/Hoymiles/src/parser/StatisticsParser.h
index 32424a04..5b646247 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.h
+++ b/lib/Hoymiles/src/parser/StatisticsParser.h
@@ -114,8 +114,8 @@ public:
     void setChannelMaxPower(uint8_t channel, uint16_t power);
 
 private:
-    uint8_t _payloadStatistic[STATISTIC_PACKET_SIZE];
-    uint8_t _statisticLength;
+    uint8_t _payloadStatistic[STATISTIC_PACKET_SIZE] = {};
+    uint8_t _statisticLength = 0;
     uint16_t _chanMaxPower[CH4];
 
     const byteAssign_t* _byteAssignment;