diff --git a/mission/controller/ThermalController.cpp b/mission/controller/ThermalController.cpp
index ab0c28b4..5811e2cb 100644
--- a/mission/controller/ThermalController.cpp
+++ b/mission/controller/ThermalController.cpp
@@ -497,6 +497,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read Q7S temperature" << std::endl;
     deviceTemperatures.q7s.setValid(false);
+    deviceTemperatures.q7s = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.q7s = tempQ7s;
@@ -506,11 +507,13 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to commit" << std::endl;
   }
+
   lp_var_t<float> battTemp1 = lp_var_t<float>(objects::BPX_BATT_HANDLER, BpxBattery::BATT_TEMP_1);
   result = battTemp1.read();
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read battery temperature 1" << std::endl;
     deviceTemperatures.batteryTemp1.setValid(false);
+    deviceTemperatures.batteryTemp1 = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.batteryTemp1 = battTemp1;
@@ -525,6 +528,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read battery temperature 2" << std::endl;
     deviceTemperatures.batteryTemp2.setValid(false);
+    deviceTemperatures.batteryTemp2 = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.batteryTemp2 = battTemp2;
@@ -539,6 +543,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read battery temperature 3" << std::endl;
     deviceTemperatures.batteryTemp3.setValid(false);
+    deviceTemperatures.batteryTemp3 = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.batteryTemp3 = battTemp3;
@@ -553,6 +558,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read battery temperature 4" << std::endl;
     deviceTemperatures.batteryTemp4.setValid(false);
+    deviceTemperatures.batteryTemp4 = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.batteryTemp4 = battTemp4;
@@ -567,6 +573,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read reaction wheel 1 temperature" << std::endl;
     deviceTemperatures.rw1.setValid(false);
+    deviceTemperatures.rw1 = static_cast<int32_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.rw1.setValid(tempRw1.isValid());
@@ -581,6 +588,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read reaction wheel 2 temperature" << std::endl;
     deviceTemperatures.rw2.setValid(false);
+    deviceTemperatures.rw2 = static_cast<int32_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.rw2.setValid(tempRw2.isValid());
@@ -595,6 +603,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read reaction wheel 3 temperature" << std::endl;
     deviceTemperatures.rw3.setValid(false);
+    deviceTemperatures.rw3 = static_cast<int32_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.rw3.setValid(tempRw3.isValid());
@@ -609,6 +618,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read reaction wheel 4 temperature" << std::endl;
     deviceTemperatures.rw4.setValid(false);
+    deviceTemperatures.rw4 = static_cast<int32_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.rw4.setValid(tempRw4.isValid());
@@ -624,6 +634,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read startracker temperature" << std::endl;
     deviceTemperatures.startracker.setValid(false);
+    deviceTemperatures.startracker = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.startracker.setValid(tempStartracker.isValid());
@@ -639,6 +650,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read syrlinks power amplifier temperature" << std::endl;
     deviceTemperatures.syrlinksPowerAmplifier.setValid(false);
+    deviceTemperatures.syrlinksPowerAmplifier = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.syrlinksPowerAmplifier.setValid(tempSyrlinksPowerAmplifier.isValid());
@@ -654,6 +666,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read syrlinks baseband board temperature" << std::endl;
     deviceTemperatures.syrlinksBasebandBoard.setValid(false);
+    deviceTemperatures.syrlinksBasebandBoard = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.syrlinksBasebandBoard.setValid(tempSyrlinksBasebandBoard.isValid());
@@ -669,6 +682,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read MGT temperature" << std::endl;
     deviceTemperatures.mgt.setValid(false);
+    deviceTemperatures.mgt = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.mgt.setValid(tempMgt.isValid());
@@ -684,6 +698,9 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read ACU temperatures" << std::endl;
     deviceTemperatures.acu.setValid(false);
+    deviceTemperatures.acu[0] = static_cast<float>(INVALID_TEMPERATURE);
+    deviceTemperatures.acu[1] = static_cast<float>(INVALID_TEMPERATURE);
+    deviceTemperatures.acu[2] = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.acu.setValid(tempAcu.isValid());
@@ -699,6 +716,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read PDU1 temperature" << std::endl;
     deviceTemperatures.pdu1.setValid(false);
+    deviceTemperatures.pdu1 = static_cast<int16_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.pdu1.setValid(tempPdu1.isValid());
@@ -714,6 +732,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read PDU2 temperature" << std::endl;
     deviceTemperatures.pdu2.setValid(false);
+    deviceTemperatures.pdu2 = static_cast<int16_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.pdu2.setValid(tempPdu1.isValid());
@@ -729,6 +748,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read P60 dock temperature 1" << std::endl;
     deviceTemperatures.temp1P60dock.setValid(false);
+    deviceTemperatures.temp1P60dock = static_cast<int16_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.temp1P60dock.setValid(temp1P60dock.isValid());
@@ -744,6 +764,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read P60 dock temperature 2" << std::endl;
     deviceTemperatures.temp2P60dock.setValid(false);
+    deviceTemperatures.temp2P60dock = static_cast<int16_t>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.temp2P60dock.setValid(temp2P60dock.isValid());
@@ -759,6 +780,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read gyro 0 temperature" << std::endl;
     deviceTemperatures.gyro0SideA.setValid(false);
+    deviceTemperatures.gyro0SideA = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.gyro0SideA.setValid(tempGyro0.isValid());
@@ -774,6 +796,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read gyro 1 temperature" << std::endl;
     deviceTemperatures.gyro1SideA.setValid(false);
+    deviceTemperatures.gyro1SideA = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.gyro1SideA.setValid(tempGyro1.isValid());
@@ -789,6 +812,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read gyro 2 temperature" << std::endl;
     deviceTemperatures.gyro2SideB.setValid(false);
+    deviceTemperatures.gyro2SideB = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.gyro2SideB.setValid(tempGyro2.isValid());
@@ -804,6 +828,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read gyro 3 temperature" << std::endl;
     deviceTemperatures.gyro3SideB.setValid(false);
+    deviceTemperatures.gyro3SideB = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.gyro3SideB.setValid(tempGyro3.isValid());
@@ -819,6 +844,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read MGM 0 temperature" << std::endl;
     deviceTemperatures.mgm0SideA.setValid(false);
+    deviceTemperatures.mgm0SideA = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.mgm0SideA.setValid(tempMgm0.isValid());
@@ -834,6 +860,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read MGM 2 temperature" << std::endl;
     deviceTemperatures.mgm2SideB.setValid(false);
+    deviceTemperatures.mgm2SideB = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.mgm2SideB.setValid(tempMgm2.isValid());
@@ -849,6 +876,7 @@ void ThermalController::copyDevices() {
   if (result != RETURN_OK) {
     sif::warning << "ThermalController: Failed to read payload PCDU ADC temperature" << std::endl;
     deviceTemperatures.adcPayloadPcdu.setValid(false);
+    deviceTemperatures.adcPayloadPcdu = static_cast<float>(INVALID_TEMPERATURE);
   }
   else {
     deviceTemperatures.adcPayloadPcdu.setValid(tempAdcPayloadPcdu.isValid());