diff --git a/docs/PWM.md b/docs/PWM.md
index dbd67dc..c0a647b 100644
--- a/docs/PWM.md
+++ b/docs/PWM.md
@@ -92,7 +92,9 @@ The following PWM resources are available:
 
 HomeSpan *automatically* allocates Channels and Timers to LedPin and ServoPin objects as they are instantiated. Every pin assigned consumes a single Channel;  every *unique* frequency specified among all channels (within the same set, for the ESP32) consumes a single Timer.  HomeSpan will conserve resources by re-using the same Timer for all Channels operating at the same frequency.  *HomeSpan also automatically configures each Timer to support the maximum duty-resolution possible for the frequency specified.*
 
-HomeSpan will report a non-fatal error message to the Arduino Serial Monitor when insufficient Channel or Timer resources prevent the creation of a new LedPin or ServoPin object.  Calls to the `set()` method for objects that failed to be properly created are silently ignored.
+#### Diagnostic Messages
+
+The **LedPin** and **ServoPin** classes output *Information \[I\]* and *Warning \[W\]* messages to the Serial Monitor based on the *Core Debug Level* selected when compiling the sketch using the Arduino IDE.  A non-fatal warning message is produced when insufficient Channel or Timer resources prevent the creation of a new LedPin or ServoPin object.  Calls to the `set()` method for objects that failed to be properly created are silently ignored.
 
 ---