Haier GE APPLIANCES AZ45E07D 5 Series Technical Service Manual page 38

Switch
S501-4
ON: Make up air module equipped
Switch
S501-2
15k BTU OFF
12k BTU ON
9k BTU OFF
7k BTU ON
When the unit is powered on after replacing the board, the display will show "P1". Press the
up pad (+) button until the display shows "P3" for engineering digit 5 models. Press the red
"Aux" button to save and exit, then verify proper operation.
Switch
S502-3 and S502-4
Are currently not used
Switch
S502-3
S502-1
OFF
ON: AZ45
OFF
OFF: AZ65
ON
ON
– 38 –
Switch
S502-2
ON: 265V model only Outlet Air
Thermistor equipped - locate on the
louver assembly
Switch
S502-1
ON: Heat pipe equipped