diff --git a/rpi_power_monitor/power_monitor.py b/rpi_power_monitor/power_monitor.py
index 73ab320..9b08d16 100644
--- a/rpi_power_monitor/power_monitor.py
+++ b/rpi_power_monitor/power_monitor.py
@@ -563,11 +563,19 @@ def calculate_power(self, samples, board_voltage):
                 rms_current_ct1 = rms_current_ct1 * 2
             if self.config['current_transformers']['channel_1'].get('reversed'):
                 # RMS current is always positive, so the reverse check is done off the calculated real power.
-                if real_power_1 < 0:    # Make power positive (current is already positive)
-                    real_power_1 = real_power_1 * -1
-                    power_factor_1 = abs(power_factor_1)
-                else: # Make current negative (real power is already negative)
-                    rms_current_ct1 = rms_current_ct1 * -1
+                # Only update the real power and RMS Current if the 9V AC voltage is live.
+                if rms_voltage_1 > 60:
+                    if real_power_1 < 0:    # Make power positive (current is already positive)
+                        real_power_1 = real_power_1 * -1
+                        power_factor_1 = abs(power_factor_1)
+                    else: # Make current negative (real power is already negative)
+                        rms_current_ct1 = rms_current_ct1 * -1
+
+            # If the 9V AC power supply is not connected or detected, the current and power sign should always be positive. 60 is picked simply as an arbitrary value.
+            if rms_voltage_1 < 60:
+                rms_current_ct2 = abs(rms_current_ct1)
+                real_power_1 = abs(real_power_1)
+
             
             results[1] = {
                 'type': self.config['current_transformers']['channel_1']['type'],
@@ -595,11 +603,19 @@ def calculate_power(self, samples, board_voltage):
                 rms_current_ct2 = rms_current_ct2 * 2
             if self.config['current_transformers']['channel_2'].get('reversed'):
                 # RMS current is always positive, so the reverse check is done off the calculated real power.
-                if real_power_2 < 0:    # Make power positive (current is already positive)
-                    real_power_2 = real_power_2 * -1
-                    power_factor_2 = abs(power_factor_2)
-                else: # Make current negative (real power is already negative)
-                    rms_current_ct2 = rms_current_ct2 * -1
+                # Only update the real power and RMS Current if the 9V AC voltage is live.
+                if rms_voltage_2 > 60:
+                    if real_power_2 < 0:    # Make power positive (current is already positive)
+                        real_power_2 = real_power_2 * -1
+                        power_factor_2 = abs(power_factor_2)
+                    else: # Make current negative (real power is already negative)
+                        rms_current_ct2 = rms_current_ct2 * -1
+
+            # If the 9V AC power supply is not connected or detected, the current and power sign should always be positive. 60 is picked simply as an arbitrary value.
+            if rms_voltage_2 < 60:
+                rms_current_ct2 = abs(rms_current_ct2)
+                real_power_2 = abs(real_power_2)
+
             
             results[2] = {
                 'type': self.config['current_transformers']['channel_2']['type'],
@@ -627,11 +643,19 @@ def calculate_power(self, samples, board_voltage):
                 rms_current_ct3 = rms_current_ct3 * 2
             if self.config['current_transformers']['channel_3'].get('reversed'):
                 # RMS current is always positive, so the reverse check is done off the calculated real power.
-                if real_power_3 < 0:    # Make power positive (current is already positive)
-                    real_power_3 = real_power_3 * -1
-                    power_factor_3 = abs(power_factor_3)
-                else: # Make current negative (real power is already negative)
-                    rms_current_ct3 = rms_current_ct3 * -1
+                # Only update the real power and RMS Current if the 9V AC voltage is live.
+                if rms_voltage_3 > 60:
+                    if real_power_3 < 0:    # Make power positive (current is already positive)
+                        real_power_3 = real_power_3 * -1
+                        power_factor_3 = abs(power_factor_3)
+                    else: # Make current negative (real power is already negative)
+                        rms_current_ct3 = rms_current_ct3 * -1
+
+            # If the 9V AC power supply is not connected or detected, the current and power sign should always be positive. 60 is picked simply as an arbitrary value.
+            if rms_voltage_3 < 60:
+                rms_current_ct2 = abs(rms_current_ct3)
+                real_power_3 = abs(real_power_3)
+
             
             results[3] = {
                 'type': self.config['current_transformers']['channel_3']['type'],
@@ -659,11 +683,19 @@ def calculate_power(self, samples, board_voltage):
                 rms_current_ct4 = rms_current_ct4 * 2
             if self.config['current_transformers']['channel_4'].get('reversed'):
                 # RMS current is always positive, so the reverse check is done off the calculated real power.
-                if real_power_4 < 0:    # Make power positive (current is already positive)
-                    real_power_4 = real_power_4 * -1
-                    power_factor_4 = abs(power_factor_4)
-                else: # Make current negative (real power is already negative)
-                    rms_current_ct4 = rms_current_ct4 * -1
+                # Only update the real power and RMS Current if the 9V AC voltage is live.
+                if rms_voltage_4 > 60:
+                    if real_power_4 < 0:    # Make power positive (current is already positive)
+                        real_power_4 = real_power_4 * -1
+                        power_factor_4 = abs(power_factor_4)
+                    else: # Make current negative (real power is already negative)
+                        rms_current_ct4 = rms_current_ct4 * -1
+
+            # If the 9V AC power supply is not connected or detected, the current and power sign should always be positive. 60 is picked simply as an arbitrary value.
+            if rms_voltage_4 < 60:
+                rms_current_ct2 = abs(rms_current_ct4)
+                real_power_4 = abs(real_power_4)
+
             
             results[4] = {
                 'type': self.config['current_transformers']['channel_4']['type'],
@@ -691,11 +723,19 @@ def calculate_power(self, samples, board_voltage):
                 rms_current_ct5 = rms_current_ct5 * 2
             if self.config['current_transformers']['channel_5'].get('reversed'):
                 # RMS current is always positive, so the reverse check is done off the calculated real power.
-                if real_power_5 < 0:    # Make power positive (current is already positive)
-                    real_power_5 = real_power_5 * -1
-                    power_factor_5 = abs(power_factor_5)
-                else: # Make current negative (real power is already negative)
-                    rms_current_ct5 = rms_current_ct5 * -1
+                # Only update the real power and RMS Current if the 9V AC voltage is live.
+                if rms_voltage_5 > 60:
+                    if real_power_5 < 0:    # Make power positive (current is already positive)
+                        real_power_5 = real_power_5 * -1
+                        power_factor_5 = abs(power_factor_5)
+                    else: # Make current negative (real power is already negative)
+                        rms_current_ct5 = rms_current_ct5 * -1
+
+            # If the 9V AC power supply is not connected or detected, the current and power sign should always be positive. 60 is picked simply as an arbitrary value.
+            if rms_voltage_5 < 60:
+                rms_current_ct2 = abs(rms_current_ct5)
+                real_power_5 = abs(real_power_5)
+
             
             results[5] = {
                 'type': self.config['current_transformers']['channel_5']['type'],
@@ -723,11 +763,19 @@ def calculate_power(self, samples, board_voltage):
                 rms_current_ct6 = rms_current_ct6 * 2
             if self.config['current_transformers']['channel_6'].get('reversed'):
                 # RMS current is always positive, so the reverse check is done off the calculated real power.
-                if real_power_6 < 0:    # Make power positive (current is already positive)
-                    real_power_6 = real_power_6 * -1
-                    power_factor_6 = abs(power_factor_6)
-                else: # Make current negative (real power is already negative)
-                    rms_current_ct6 = rms_current_ct6 * -1
+                # Only update the real power and RMS Current if the 9V AC voltage is live.
+                if rms_voltage_6 > 60:
+                    if real_power_6 < 0:    # Make power positive (current is already positive)
+                        real_power_6 = real_power_6 * -1
+                        power_factor_6 = abs(power_factor_6)
+                    else: # Make current negative (real power is already negative)
+                        rms_current_ct6 = rms_current_ct6 * -1
+
+            # If the 9V AC power supply is not connected or detected, the current and power sign should always be positive. 60 is picked simply as an arbitrary value.
+            if rms_voltage_6 < 60:
+                rms_current_ct2 = abs(rms_current_ct6)
+                real_power_6 = abs(real_power_6)
+
             
             results[6] = {
                 'type': self.config['current_transformers']['channel_6']['type'],