Rheem · Furnace

h flashing Calibrating (CALIBRATE-NO V)

Low severity RGPE/RGLE

What the control is telling you

Lower-case h flashing. Per the troubleshooting chart, H/h should be steady during a heat call; if it is flashing check the dipswitches / test mode.

Applies to: RGPE/RGLE 2-stage 80+

Likely causes

Dipswitch or test-mode setting
Calibration in progress

Test and repair steps

Note the original dipswitch settings before changing anything.
Check the test-mode dipswitches and that test mode has not expired (1 hour limit).
Check the SW1-SW3 settings against the manual tables.
Verify on unit allow the cycle to continue and confirm h goes steady.

Settings for these units

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

Cabinet width	Input	Bottom filter	Side filter	Quantity
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 size	Cabinet width (A)	Right side	Top	Front	Vent
RGPE upflow/horizontal 05	17-1/2 in.	3 in. (note 2)	1 in.	3 in.	6 in. (note 3)
RGPE upflow/horizontal 07(A)	17-1/2 in.	3 in. (note 2)	1 in.	3 in.	6 in. (note 3)
RGPE upflow/horizontal 07(B), 10	21 in.	0	1 in.	3 in.	6 in. (note 3)
RGPE upflow/horizontal 12	24-1/2 in.	0	1 in.	3 in.	6 in. (note 3)
RGLE downflow 07(A)	17-1/2 in.	3 in. (note 2)	1 in.	3 in.	6 in. (note 3)
RGLE downflow 07(B), 10	21 in.	0	1 in.	3 in.	6 in. (note 3)
RGLE downflow 12	24-1/2 in.	0	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

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)
d6 Blower HP conflict (BLWR HP CNFLCT)
d7 Blower manufacturer conflict (BLWR MFG CNFLCT)
d8 Old shared data (OLD SHARED DATA)
r Lockout indicator

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Source: RGPE/RGLE: Table 16 p.49 / Table 20; Fig. 45 p.63. 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.