HVACopedia

Rheem · Furnace

82 Supply air sensor fault (SA SENSOR FLT)

Low severity RGPE/RGLE

What the control is telling you

Supply air temperature sensor fault. Not stored back-to-back in the buffer.

Applies to: RGPE/RGLE 2-stage 80+

Likely causes

  • Sensor missing/unplugged/failed
  • Sensor input enabled with no sensor installed

Test and repair steps

  1. Check the supply air sensor is installed and connected.
  2. If no sensor is used, set the supply air sensor input OFF in the furnace setup user menu (factory default ON) - this stops code 82.
  3. For dual-fuel operation the sensor MUST be installed and enabled.
  4. Check sensor wiring to the IFC.

Settings for these units

Filter sizes as shipped, upflow (Table 19) · RGPE/RGLE

Cabinet widthInputBottom filterSide filterQuantity
17-1/2 in.50, 75 (000 Btu/h)15-3/4 x 25 in.15-3/4 x 25 in.1
21 in.75, 100 (000 Btu/h)19-1/4 x 25 in.15-3/4 x 25 in.1
24-1/2 in.125 (000 Btu/h)22-3/4 x 25 in.15-3/4 x 25 in.1

Use one filter location only - do not double-filter or filter the supply side.

21 in./100K: cut 3-1/2 in. off filter and frame for a side filter; 24-1/2 in./125K: cut 7 in.

Reduced clearance to combustibles (Fig. 3 and 4) · RGPE/RGLE

Model sizeCabinet width (A)Left sideRight sideBackTopFrontVent
RGPE upflow/horizontal 0517-1/2 in.0 in.3 in. (note 2)0 in.1 in.3 in.6 in. (note 3)
RGPE upflow/horizontal 07(A)17-1/2 in.0 in.3 in. (note 2)0 in.1 in.3 in.6 in. (note 3)
RGPE upflow/horizontal 07(B), 1021 in.0 in.00 in.1 in.3 in.6 in. (note 3)
RGPE upflow/horizontal 1224-1/2 in.0 in.00 in.1 in.3 in.6 in. (note 3)
RGLE downflow 07(A)17-1/2 in.0 in.3 in. (note 2)0 in.1 in.3 in.6 in. (note 3)
RGLE downflow 07(B), 1021 in.0 in.00 in.1 in.3 in.6 in. (note 3)
RGLE downflow 1224-1/2 in.0 in.00 in.1 in.3 in.6 in. (note 3)

Note 2: right side may be 0 in. with type B vent.

Note 3: vent clearance may be 1 in. with type B vent.

Models that show this code

10 models in RGPE/RGLE

RGLE-05(-)BMKRRGLE-07(-)AMKRRGLE-07(-)BRQRRGLE-10(-)BRMRRGLE-12(-)ARMRRGPE-05(-)BMKRRGPE-07(-)AMKRRGPE-07(-)BRQRRGPE-10(-)BRMRRGPE-12(-)ARMR

Other codes on the same units

  • 60 Blower fault - running (BLWR FLT-RUN)
  • 61 Blower fault - blower not running
  • 66 Blower overspeed (BLOWER OVRSPEED)
  • 68 No blower communication (NO BLWR COMM)
  • 93 Internal control fault
  • d1 No shared data (NO SHARED DATA)
  • d4 Memory card invalid (MEM CARD INVALD)
  • d5 Card/hardware conflict (CARD-HRD CNFLCT)

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Source: RGPE/RGLE: Table 16 p.49 / Table 20; user menus p.55. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

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.