diff --git a/SimpleModbusMaster.cpp b/SimpleModbusMaster.cpp
index bb02781..794bf43 100644
--- a/SimpleModbusMaster.cpp
+++ b/SimpleModbusMaster.cpp
@@ -204,12 +204,12 @@ void waiting_for_reply()
   // Serial.println("A0");
 	if ((*ModbusPort).available()) // is there something to check?
 	{
-	  Serial.println("A1");
+	  //Serial.println("A1");
 		unsigned char overflowFlag = 0;
 		buffer = 0;
 		while ((*ModbusPort).available())
 		{
-	    Serial.println("A2");
+	    //Serial.println("A2");
 			// The maximum number of bytes is limited to the serial buffer size 
       // of BUFFER_SIZE. If more bytes is received than the BUFFER_SIZE the 
       // overflow flag will be set and the serial buffer will be read until
@@ -223,7 +223,7 @@ void waiting_for_reply()
 					overflowFlag = 1;
 			
 				frame[buffer] = (*ModbusPort).read();
-				Serial.print("R: "); Serial.println(frame[buffer], 16);
+				//Serial.print("R: "); Serial.println(frame[buffer], 16);
 				buffer++;
 			}
 			// This is not 100% correct but it will suffice.
@@ -507,7 +507,7 @@ void sendPacket(unsigned char bufferSize)
 	digitalWrite(TxEnablePin, HIGH);
 		
 	for (unsigned char i = 0; i < bufferSize; i++) {
-		Serial.print("S: "); Serial.println(frame[i],16);
+		//Serial.print("S: "); Serial.println(frame[i],16);
 		(*ModbusPort).write(frame[i]);
 	}