diff --git a/meterBusMaster.cpp b/meterBusMaster.cpp
index 540ebfc..aab73bd 100644
--- a/meterBusMaster.cpp
+++ b/meterBusMaster.cpp
@@ -140,11 +140,11 @@ MeterBusMaster::MeterBusMaster() : m_sendOctets(this), m_measureCurrent(this),
     m_calibrationSupport(this),
     m_cmdReadyToSend(false), m_cmdReadyFromRecv(false), m_expectResponse(false),
     m_sendBufLen(0), m_recvBufLen(0), m_retransmitCount(0), m_token(0),
-    m_responseCallback(0), m_sampling(true), m_calibration(false) {
-    pinMode(RX_EN_PIN, OUTPUT);
-    digitalWrite(RX_EN_PIN, RX_DISABLE);
-    Serial3.begin(2400);
-    UART2_C1 |= UART_C1_PE | UART_C1_M;
+    m_responseCallback(0), m_sampling(true), m_calibration(false), m_errorCount(0) {
+  pinMode(RX_EN_PIN, OUTPUT);
+  digitalWrite(RX_EN_PIN, RX_DISABLE);
+  Serial3.begin(2400);
+  UART2_C1 |= UART_C1_PE | UART_C1_M;
 
 
 }
@@ -176,6 +176,8 @@ void MeterBusMaster::prepareResponse(bool err, uint8_t in) {
 
   //Serial << "r0" << endl;
   if (err) {
+    m_errorCount++;
+
     //Serial << "r1" << endl;
     if (m_responseCallback != 0) {
       m_responseCallback->sendError(1, m_token, m_name);
diff --git a/meterBusMaster.h b/meterBusMaster.h
index 372f1ad..288ff3a 100644
--- a/meterBusMaster.h
+++ b/meterBusMaster.h
@@ -81,6 +81,7 @@ private:
   uint8_t m_recvBuffer[RECEIVE_BUFFER_SIZE];
   bool m_sampling;
   bool m_calibration;
+  uint16_t m_errorCount;
   void prepareResponse(bool err, uint8_t in);
   void sample();
   void hold();