Rheem · Furnace

AF Airflow readout (pushbutton status menu)

Menu / mode display R96V/96MDV

What the display is showing

Shows the blower's current target CFM, 100 to 9999, split over two displays: 1251 CFM appears as 12 then 51; 745 as 7 then 45.

Applies to: (-)96VA040-115 (R96V / U96V) and (-)(-)96MDV040-115 two-stage variable-speed communicating furnaces

What to do

Step the pushbutton (under 2 s per press) until AF shows, then read the two number groups.

Settings for these units

Filter sizes · Rheem RGRM/RGTM 90 Plus
Filter sizes (Table 12) · Rheem 90RJ/90TJ 90 Plus
Minimum clearance to combustibles · Rheem 90RJ/90TJ 90 Plus
Filter sizes (Table 9) · Rheem (-)GRC/(-)GTC 90 Plus
Minimum clearance to combustibles · Rheem (-)GRC/(-)GTC 90 Plus
Clearance to combustibles (all models) · R95P

Models that show this code

12 models in R96V/96MDV

96MDV040B30A96MDV060B30A96MDV070B30A96MDV085C50A96MDV100C50A96MDV115D50AR96VA0401317MSAR96VA0601317MSAR96VA0701317MSAR96VA0851521MSAR96VA1001521MSAR96VA1151524MSA

Other codes on the same units

84 Outdoor air sensor fault
93 Internal control fault
d1 No shared data (NO SHARED DATA)
d4 Memory card invalid (MEM CARD INVALD)
d6 Blower HP conflict (BLWR HP CNFLCT)
C Cooling or heat-pump heat (compressor call)
F Continuous fan on
FL Fault history (pushbutton status menu)

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Source: Rheem (-)96V / (-)(-)96MDV Installation Instructions 92-24161-124-08, 15 Pushbutton (S8) p.95-96. 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.