Each code is made up of two series of flashes.
The first series indicates the 'tens' digit.
The second series indicates the 'ones' digit.
A long pause separates each code.
A shorter pause separates the 'tens' and 'ones'.
Code sequence starts with code 12 and repeats each code 3 times. (if only code 12 is found, system is normal)
Code Format Diagram shows code No. 32.