diff --git a/fan_control/include/serial.hpp b/fan_control/include/serial.hpp
index 8c162e1..0a74fe4 100644
--- a/fan_control/include/serial.hpp
+++ b/fan_control/include/serial.hpp
@@ -5,7 +5,6 @@ class WsSerial{
     std::list<String> debug;
 
     public:
-    inline void print(const String& line){  println(line); }
     inline void println(const String& line){
         // enable debug the debugging 
         Serial.println(line.c_str()); 
diff --git a/fan_control/src/collector.cpp b/fan_control/src/collector.cpp
index c99be7d..6dc9ab7 100644
--- a/fan_control/src/collector.cpp
+++ b/fan_control/src/collector.cpp
@@ -50,10 +50,8 @@ void collector_loop(){
   // Get temperature event and print its value.
   float in = dht_in.readTemperature();
   float out = dht_out.readTemperature();
-  DEBUG_OUT.print(F("Temperature inside:  "));
-  DEBUG_OUT.println(in);
-  DEBUG_OUT.print(F("Temperature outside: "));
-  DEBUG_OUT.println(out);
+  DEBUG_OUT.println(String("Temperature inside:  ") + String(in));
+  DEBUG_OUT.println(String("Temperature outside: " + String(out)));
   collector.add(in , out);
 }
 
diff --git a/fan_control/src/main.cpp b/fan_control/src/main.cpp
index d7c86f7..044b8e3 100644
--- a/fan_control/src/main.cpp
+++ b/fan_control/src/main.cpp
@@ -14,8 +14,7 @@ void setup() {
   server_setup();
   collector_setup();
   DEBUG_OUT.println(F("Setup done"));
-  DEBUG_OUT.print("IP address: ");
-  DEBUG_OUT.println(WiFi.softAPIP().toString());
+  DEBUG_OUT.println(String("IP address: ") + WiFi.softAPIP().toString());
 }
 
 void loop() {
diff --git a/fan_control/src/ota.cpp b/fan_control/src/ota.cpp
index 850eeeb..db4918b 100644
--- a/fan_control/src/ota.cpp
+++ b/fan_control/src/ota.cpp
@@ -45,7 +45,7 @@ void ota_setup(const char* ssid) {
     DEBUG_OUT.println("Progress:" +String(progress / (total / 100)));
   });
   ArduinoOTA.onError([](ota_error_t error) {
-    DEBUG_OUT.print("Error[" + String(error) + "]: ");
+    DEBUG_OUT.println("Error[" + String(error) + "]: ");
     if (error == OTA_AUTH_ERROR) DEBUG_OUT.println("Auth Failed");
     else if (error == OTA_BEGIN_ERROR) DEBUG_OUT.println("Begin Failed");
     else if (error == OTA_CONNECT_ERROR) DEBUG_OUT.println("Connect Failed");
diff --git a/fan_control/src/server.cpp b/fan_control/src/server.cpp
index 76b3c3d..40e6e1f 100644
--- a/fan_control/src/server.cpp
+++ b/fan_control/src/server.cpp
@@ -80,7 +80,6 @@ void server_setup(){
   });
 
   server.on("/log", HTTP_ANY, [](AsyncWebServerRequest * request) {
-    DEBUG_OUT.println("log start");
     AsyncWebServerResponse *response = request->beginChunkedResponse("text/html", [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t {
       if(debug_out.empty()) return 0;
       String to_send = String();