diff --git a/src/laser_diode/laser_diode.rs b/src/laser_diode/laser_diode.rs
index 0faa163..79e3b8d 100644
--- a/src/laser_diode/laser_diode.rs
+++ b/src/laser_diode/laser_diode.rs
@@ -235,7 +235,7 @@ impl LdDrive{
         self.settings.ld_drive_current_limit = settings.ld_drive_current_limit.value;
         self.settings.pd_mon_params = settings.pd_mon_params;
         self.settings.ld_pwr_limit = settings.ld_pwr_limit;
-        
+        self.settings.default_pwr_on = settings.default_pwr_on;
         if self.settings.ld_terms_short {
             self.ld_short();
         } else {
diff --git a/src/thermostat/thermostat.rs b/src/thermostat/thermostat.rs
index fa274f9..e4fbe13 100644
--- a/src/thermostat/thermostat.rs
+++ b/src/thermostat/thermostat.rs
@@ -537,7 +537,7 @@ impl Thermostat{
         if !settings.pid_engaged {
             self.set_i(settings.tec_settings.i_set.value);
         }
-
+        self.set_default_pwr_on(settings.default_pwr_on);
         if settings.default_pwr_on {
             self.power_up();
         } else {