diff --git a/src/venstarcolortouch/venstarcolortouch.py b/src/venstarcolortouch/venstarcolortouch.py
index 72647ae..2440679 100644
--- a/src/venstarcolortouch/venstarcolortouch.py
+++ b/src/venstarcolortouch/venstarcolortouch.py
@@ -215,8 +215,10 @@ def set_control(self):
                     return False
 
     def set_setpoints(self, heattemp, cooltemp):
-        # Must not violate setpointdelta.
-        if heattemp + self.setpointdelta > cooltemp:
+        # Must not violate setpointdelta if we're in auto mode.
+        if self.mode == self.MODE_AUTO and heattemp + self.setpointdelta > cooltemp:
+            print("In auto mode, the cool temp must be {0} " 
+                  "degrees warmer than the heat temp.".format(self.setpointdelta))
             return False
         self.heattemp = heattemp
         self.cooltemp = cooltemp