Carrier · Furnace

Air Menu: airflow (CFM) display on/off

Menu / mode display 59MN7C

What the display is showing

Main menu item (59MN7C) that switches an on-screen CFM display on or off.

Applies to: 59MN7C modulating furnace

What to do

Press MENU/SELECT to scroll the main menu to this item, then NEXT/OPTION to show the current value (it flashes) and step through the choices. Press MENU/SELECT to save; the display flashes three times to confirm.

Settings for these units

Filter sizes by casing width and filter cabinet · 59SC6A
Filter sizes by casing width and filter cabinet · 59TP6A
Minimum clearances to combustibles · 59TP6A
Minimum clearances to combustibles · 59SC6A
Filter sizes by casing width · 58SB0A/58SB1A
Filter sizes by casing width · Payne PG96VTA

Models that show this code

6 models in 59MN7C

59MN7C060C17--1459MN7C060C21--2059MN7C080C17--1459MN7C080C21--2059MN7C100C21--2259MN7C120C24--22

Other codes on the same units

CF3 Continuous fan (CF3 variant)
CL1 Low cooling or heat pump (PG96VTA, 59MN7C)
CL2 High cooling or heat pump (PG96VTA, 59MN7C)
##.# Active status code shown as major.minor number
Cfn Continuous fan
Clr Clear fault history
Cod Menu: cool blower-off delay
Ct Menu: component test

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Source: Carrier 59MN7C installation instructions, Table 18 Main Menu Options, p.47. Summarized in our own words; check the original manual for your model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.