diff --git a/cube/User/Src/frontend.c b/cube/User/Src/frontend.c
index 187fe59..cac960d 100644
--- a/cube/User/Src/frontend.c
+++ b/cube/User/Src/frontend.c
@@ -28,12 +28,10 @@ void frontendSetThreshold(int32_t threshold) {
 
 void frontendEnable() {
     frontendEnabled = true;
-    show(DEBUG_1, ON);
 }
 
 void frontendDisable() {
     frontendEnabled = false;
-    show(DEBUG_1, OFF);
 }
 
 void frontendAdcCallback(ADC_HandleTypeDef* hadc) {
@@ -52,8 +50,10 @@ void frontendAdcCallback(ADC_HandleTypeDef* hadc) {
             HAL_GPIO_WritePin(Frontend_Out_GPIO_Port, Frontend_Out_Pin, GPIO_PIN_SET);
         }
     } else {
-        holdValue = 0;
-        HAL_GPIO_WritePin(Frontend_Out_GPIO_Port, Frontend_Out_Pin, GPIO_PIN_SET);
+        if (holdValue != 0) {
+            holdValue = 0;
+            HAL_GPIO_WritePin(Frontend_Out_GPIO_Port, Frontend_Out_Pin, GPIO_PIN_SET);
+        }
     }
 
 }
diff --git a/cube/User/Src/mbusComm.c b/cube/User/Src/mbusComm.c
index 009f44c..76bad27 100644
--- a/cube/User/Src/mbusComm.c
+++ b/cube/User/Src/mbusComm.c
@@ -275,7 +275,6 @@ void mbusCommISR() {
         // They will be cleared by reading SR (already done above) followed by reading DR (below).
         bool errorFound = false;
         if ((isrflags & USART_SR_ORE) != RESET) {
-            show(DEBUG_2, TOGGLE); 
             mbusCommStats.uartOverrunCnt += 1;
             errorFound = true;
         }