MultiServe (KF9250, KF9270, KF9370): What do the A1, A2 and A3 settings mean?

The settings A1, A2, and A3 are the altitude settings you can program on your unit to ensure your coffee maker works properly at higher altitudes. You must choose your altitude setting for optimal performance based on the altitude of where you live:

Altitude (m/ft)	0 – 499 / 0 – 1637	500 – 999 / 1638 – 3278	1000 – 1499 / 3279 – 4918
Parameter	A 1	A 2	A 3