The diagnostic board on a system is flashing three short flashes, pausing, and then flashing two ...

The diagnostic board on a system is flashing three short flashes, pausing, and then flashing two long flashes. This most likely is displaying:
 
  A) Fault code 32.
  B) The dateMarch 2.
  C) A secret code known only to the designer. Manufacturers do not share their fault codes with service technicians.
  D) The suction pressure32 psig.

 Q. 2

When trying to diagnose an open pressure switch, which manufacturer-supplied reference will probably be the most helpful?
 
  A) The benchmark data B) The fault code reference list
  C) The logic flowchart D) The symptoms list

 Q. 3

The reversing valve on most air-source residential heat pumps is energized:
 
  A) During the defrost cycle. B) During the heating cycle.
  C) During the cooling cycle. D) During the cooling and the defrost cycles.