diff --git a/boil_kettle/src/functions.h b/boil_kettle/src/functions.h
index d81022e..7e0f41c 100644
--- a/boil_kettle/src/functions.h
+++ b/boil_kettle/src/functions.h
@@ -80,7 +80,10 @@ void UpdateBoilKettle(){
   }
 
   if (KettleController.Mode() != OFF) {
-    if (KettleController.Compute()) KettleDuty = KettleController.Power();
+    // Compute will return false if MANUAL is set so duty will not
+    // be changed here.
+    KettleController.Compute();
+    KettleDuty = KettleController.Power();
     digitalWrite(O_PWM, boilPWM.compute(KettleDuty));
   } else {
     digitalWrite(O_PWM, boilPWM.compute(0));