diff --git a/tasmota/tasmota_xnrg_energy/xnrg_23_ade7880.ino b/tasmota/tasmota_xnrg_energy/xnrg_23_ade7880.ino
index 7adacaa97..9312f4df5 100644
--- a/tasmota/tasmota_xnrg_energy/xnrg_23_ade7880.ino
+++ b/tasmota/tasmota_xnrg_energy/xnrg_23_ade7880.ino
@@ -41,6 +41,8 @@
 //#define ADE7880_DEBUG
 //#define ADE7880_PROFILING
 
+#define ADE7880_HEARTBEAT       5            // Allow x seconds of missed interrupts before reinit
+
 // Default calibration parameters can be overridden by a rule as documented above.
 #define ADE7880_FREQ_INIT       0            // Connected to networks with fundamental frequencies between 55 Hz and 66 Hz (1). Default 45 Hz to 55 Hz (0).
 #define ADE7880_AIGAIN_INIT     3166385      // rms, current_a
@@ -262,6 +264,7 @@ struct Ade7880 {
   bool calib_frequency;
   bool irq0_state;
   uint8_t cycle_count;
+  uint8_t heartbeat;
 } Ade7880;
 
 /*********************************************************************************************/
@@ -460,6 +463,7 @@ bool Ade7880SetCalibrate(void) {
 #endif  // ADE7880_PROFILING
 
       if (Ade7880Init()) {
+        Ade7880.heartbeat = 0;
         return true;
       }
     }
@@ -534,6 +538,7 @@ void Ade7880Service0(void) {
   // Poll sequence
   SkipSleep(false);
   Ade7880Cycle();
+  Ade7880.heartbeat = 0;
   Ade7880.irq0_state = 0;
 }
 
@@ -545,6 +550,15 @@ void IRAM_ATTR Ade7880Isr0(void) {
   }
 }
 
+void Ade7880Heartbeat(void) {
+  // Reinit if interrupt stopped
+  Ade7880.heartbeat++;
+  if (Ade7880.heartbeat > ADE7880_HEARTBEAT) {
+    AddLog(LOG_LEVEL_DEBUG, PSTR("A78: Reinit"));
+    Ade7880SetCalibrate();
+  }
+}
+
 /*********************************************************************************************/
 
 bool Ade7880SetDefaults(const char* json) {
@@ -747,6 +761,9 @@ bool Xnrg23(uint8_t function) {
     case FUNC_LOOP:
       if (Ade7880.irq0_state) { Ade7880Service0(); }
       break;
+    case FUNC_EVERY_SECOND:
+      Ade7880Heartbeat();
+      break;
 #ifdef ADE7880_MORE_REGS
     case FUNC_JSON_APPEND:
       Ade7880Show(1);