Index: leahi_dialin/td/modules/air_pump.py
===================================================================
diff -u -r7f463d8649e41b995e1a94cc001ffc50541cafb7 -reb02c56e88faeeda46ed62b1c0ec841dca0b9aba
--- leahi_dialin/td/modules/air_pump.py	(.../air_pump.py)	(revision 7f463d8649e41b995e1a94cc001ffc50541cafb7)
+++ leahi_dialin/td/modules/air_pump.py	(.../air_pump.py)	(revision eb02c56e88faeeda46ed62b1c0ec841dca0b9aba)
@@ -71,21 +71,28 @@
     def cmd_air_pump_set_state(self, state: int, power: int) -> int:
         """
         Constructs and sends the air pump set state command.
+            AIR_PUMP_STATE_INIT = 0,        ///< Air Pump Initialize state
+            AIR_PUMP_STATE_OFF,             ///< Air Pump Off state
+            AIR_PUMP_STATE_ON,              ///< Air Pump On state
+            NUM_OF_AIR_PUMP_STATES,         ///< Number of air pump states
 
         Constraints:
             Must be logged into TD.
+        @param state:  integer - state value to set the air pump
         @param power:  integer - 0-255 value to set the air pump power
         @return: 1 if successful, zero otherwise
         """
 
-        sts = integer_to_bytearray(state)
+        idx = integer_to_bytearray(state)
         pwr = integer_to_bytearray(power)
-        payload = sts + pwr
+        payload = idx + pwr
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_td_ch_id,
                                               message_id=MsgIds.MSG_ID_TD_AIR_PUMP_SET_STATE_REQUEST.value,
                                               payload=payload)
 
+        self.logger.debug("setting air pump state to" + str(state))
+
         # Send message
         received_message = self.can_interface.send(message)