Index: dialin/dg/valves.py
===================================================================
diff -u -r7867f8415014213fc2a4e66f54f45fc199dcb33c -r067847578eff553277f13b741f8e1ef20a7ca84f
--- dialin/dg/valves.py	(.../valves.py)	(revision 7867f8415014213fc2a4e66f54f45fc199dcb33c)
+++ dialin/dg/valves.py	(.../valves.py)	(revision 067847578eff553277f13b741f8e1ef20a7ca84f)
@@ -92,7 +92,7 @@
         \returns none
         """
 
-        vst = struct.unpack('f', bytearray(message['message'][self.START_POS_VALVES_STATES:self.END_POS_VALVES_STATES]))
+        vst = struct.unpack('H', bytearray(message['message'][self.START_POS_VALVES_STATES:self.END_POS_VALVES_STATES]))
 
         # Extract each valve state from U16 valves states using bit-masking
         self.valve_state_VRF = vst & 0x0001