there are actually 8 heaters

CHANGELOG.md

@@ -27,6 +27,8 @@ will consitute of a breaking change warranting a new major release:
 
 - TMP1075: Set dataset invalid on shutdown explicitely
 - Small fixes for TMP1075 FDIR: Use strange and missed reply counters.
+- TCS controller: Last heater (S-band heater) was skipped for transition completion
+  checks.
 
 # [v6.0.0] 2023-07-02
 

mission/controller/ThermalController.cpp

@@ -1751,7 +1751,7 @@ void ThermalController::resetSensorsArray() {
 }
 
 void ThermalController::heaterTransitionControl(const HeaterSwitchStates& currentHeaterStates) {
-  for (unsigned i = 0; i < 7; i++) {
+  for (unsigned i = 0; i < heater::Switch::NUMBER_OF_SWITCHES; i++) {
     if (heaterStates[i].switchTransition) {
       if (currentHeaterStates[i] == heaterStates[i].target) {
         heaterStates[i].switchTransition = false;