Index: firmware/App/Services/WatchdogMgmt.c
===================================================================
diff -u -re12f1b3d41ae133bc0975fcb126e431c2bedda59 -re5e7a37f5f1e2942630f748be23eac9f452af3aa
--- firmware/App/Services/WatchdogMgmt.c	(.../WatchdogMgmt.c)	(revision e12f1b3d41ae133bc0975fcb126e431c2bedda59)
+++ firmware/App/Services/WatchdogMgmt.c	(.../WatchdogMgmt.c)	(revision e5e7a37f5f1e2942630f748be23eac9f452af3aa)
@@ -29,13 +29,14 @@
 
 // ********** private definitions **********
 
-#define MIN_WATCHDOG_PET_INTERVAL_MS        45                                  ///< Minimum watchdog pet interval.
+#define MIN_WATCHDOG_PET_INTERVAL_MS         45                                 ///< Minimum watchdog pet interval.
 
-#define WATCHDOG_POST_TIMEOUT_MS            500                                 ///< Watchdog POST timeout in ms.
-#define WATCHDOG_RECOVERY_TIME_MS           750                                 ///< Watchdog recovery time in ms.
+#define WATCHDOG_POST_TIMEOUT_MS             500                                ///< Watchdog POST timeout in ms.
+#define WATCHDOG_RECOVERY_TIME_MS            750                                ///< Watchdog recovery time in ms.
 
-#define MAX_24V_LEVEL_ON_WATCHDOG_EXPIRED   5.0F                                ///< Maximum voltage on 24V line when watchdog is expired.  // TODO - check w/ Systems.  Takes time for V to bleed off.  Had to raise to 5V.
-#define MIN_24V_LEVEL_ON_WATCHDOG_RECOVER   22.6F                               ///< Minimum voltage on 24V line when watchdog is recovered.
+#define MAX_24V_LEVEL_ON_WATCHDOG_EXPIRED    5.0F                               ///< Maximum voltage on 24V line when watchdog is expired.  // TODO - check w/ Systems.  Takes time for V to bleed off.  Had to raise to 5V.
+#define MAX_ISOLATED_24V_LEVEL_ON_WD_EXPIRED 22.6F                              ///< Maximum voltage on isolated 24V line when watchdog is expired. 10% of 24V.
+#define MIN_24V_LEVEL_ON_WATCHDOG_RECOVER    22.6F                              ///< Minimum voltage on 24V line when watchdog is recovered.
 
 /// List of watchdog states.
 typedef enum Button_Self_Test_States
@@ -160,7 +161,7 @@
     switch ( watchdogSelfTestState )
     {
         case WATCHDOG_SELF_TEST_STATE_START:
-            watchdogSelfTestState = WATCHDOG_SELF_TEST_STATE_IN_PROGRESS;
+            watchdogSelfTestState      = WATCHDOG_SELF_TEST_STATE_IN_PROGRESS;
             watchdogSelfTestTimerCount = getMSTimerCount();
             // no break here so we pass through directly to in progress processing
 
@@ -171,7 +172,8 @@
             }
             if ( PIN_SIGNAL_LOW == getCPLDWatchdogExpired() )
             {
-                F32 v24 = getIntADCVoltageConverted( INT_ADC_SECONDARY_HEATER_24_VOLTS );
+                F32 v24         = getIntADCVoltageConverted( INT_ADC_SECONDARY_HEATER_24_VOLTS );
+                F32 isolatedV24 = getMonitoredLineLevel( MONITORED_LINE_24V_POWER_PRIM_HTR_V );
 
                 // Verify 24V is down when w.d. expired
                 if ( v24 > MAX_24V_LEVEL_ON_WATCHDOG_EXPIRED )
@@ -186,15 +188,16 @@
                 watchdogSelfTestStatus = SELF_TEST_STATUS_FAILED;
             }
             watchdogSelfTestTimerCount = getMSTimerCount();
-            watchdogSelfTestState = WATCHDOG_SELF_TEST_STATE_RECOVER;
+            watchdogSelfTestState      = WATCHDOG_SELF_TEST_STATE_RECOVER;
             break;
 
         case WATCHDOG_SELF_TEST_STATE_RECOVER:
             if ( TRUE == didTimeout( watchdogSelfTestTimerCount, WATCHDOG_RECOVERY_TIME_MS ) )
             {
                 if ( PIN_SIGNAL_HIGH == getCPLDWatchdogExpired() )
                 {
-                    F32 v24 = getIntADCVoltageConverted( INT_ADC_SECONDARY_HEATER_24_VOLTS );
+                    F32 v24         = getIntADCVoltageConverted( INT_ADC_SECONDARY_HEATER_24_VOLTS );
+                    F32 isolatedV24 = getMonitoredLineLevel( MONITORED_LINE_24V_POWER_PRIM_HTR_V );
 
                     // Verify 24V is down when w.d. recovered    TODO - If issue persisted
                     // ask EE team why 24V does not quite recover all the way to 22.6V even after 750 ms.  How long should it take?