Rheem · Furnace

33 Rollout switch (MRLC) open

Critical severity Rheem/Ruud 802P / 80MDP 80% two-stage furnace (UT 1028-928 IFC)R95PRGPE/RGLE

What the control is telling you

A manual-reset limit (flame roll-out switch) has opened - flame rolled out of the burner area. Must be reset by hand. RGPE/RGLE: can indicate a blocked exhaust flue; thermostat shows Call For Service.

Applies to: 802P/80MDP (802PA050-150); R95P (R95PA040-115); RGPE/RGLE 2-stage 80+

Likely causes

Blocked flue or vent
Blocked or cracked heat exchanger
Overfiring / wrong orifice or high gas pressure
Combustion air problem / combustion restriction

Test and repair steps

Warning: Do not jumper the roll-out switch. Find and fix the cause before resetting - fire and CO risk.
Inspect vent/flue and heat exchanger for blockage.
Check gas pressure and orifice size.
Check combustion air supply; 802P: test with closet door closed if installed in a closet.
Check the burner compartment for signs of rollout and wiring between IFC and the switch.
Reset only after the cause is corrected, then watch a full heat cycle.

Settings for these units

Clearance to combustibles (all models) · R95P

Location	Minimum clearance
Left side	0 in.
Right side	0 in.
Back	0 in.
Top	1 in.
Front	2 in.
Vent	0 in.
Service (front)	24 in. recommended

Same values for R95PA040 through 115.

Column order read from a rotated drawing header - confirm on the furnace clearance label.

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, upflow/horizontal (Fig. 4) · Rheem/Ruud 802P / 80MDP 80% two-stage furnace (UT 1028-928 IFC)
Reduced clearance to combustibles (Fig. 3 and 4) · RGPE/RGLE

Models that show this code

21 models in Rheem/Ruud 802P / 80MDP 80% two-stage furnace (UT 1028-928 IFC), R95P, RGPE/RGLE

R802PA050314MSAR802PA075417MSAR802PA100521MSAR802PA125524MSAR802PA150524MSAR95PA0401317MSAR95PA0601317MSAR95PA0701317MSAR95PA0851521MSAR95PA1001521MSAR95PA1151524MSARGLE-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

20 Twinning fault
22 Main limit open
23 HALC limit open (HALC LIMIT OPEN)
26 Line and neutral reversed
44 Low pressure switch closed (stuck)
45 Low pressure switch open - inducer high speed
46 Low pressure switch open - inducer low speed
55 Pressure switch stuck closed

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Source: 802P: 92-24161-146-02, Diagnostics and Fault Codes table, p.40, 48, 51; R95P: Diagnostics and Fault Codes table, p.87 (PDF p.91); RGPE/RGLE: Table 16 p.49 / Table 20; user menus p.52; 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.