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Rheem Error Code r: Lockout indicator (Furnace)

Updated · by Aurora Star Tech Inc.

Rheem error code r on a furnace means: Lockout indicator. It is also called Rheem diagnostic code r.

High severityFurnaceRGPE/RGLE

Homeowner? What Rheem code r means for you

Call a technician Your furnace is reporting: Lockout indicator. The furnace has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
  • Make sure the furnace front door or panel is closed properly; many furnaces will not run with the door switch open.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • Outside, make sure the intake and exhaust pipes or vent cap are not blocked by snow, ice, leaves or a nest.
  • Check that the gas valve next to the furnace is open (handle in line with the pipe). Do not force it.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Rheem error code r mean?

Shown on the seven-segment displays when the IFC is in lockout (defined in the Fig. 45 troubleshooting chart, not in Table 16).

Applies to: RGPE/RGLE 2-stage 80+

Common causes of Rheem code r

  • Repeated ignition failure or other lockout fault
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Rheem models that use code r

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

Other Rheem Furnace codes

CodeMeaning
d7Blower manufacturer conflict (BLWR MFG CNFLCT)
d8Old shared data (OLD SHARED DATA)
Flame LED offNo flame sensed (troubleshooting aid)
Flame LED rapid blinkAmber flame LED - unexpected flame
Flame LED slow blinkAmber flame LED - marginal flame sense
h flashingCalibrating (CALIBRATE-NO V)

All Rheem Furnace error codes →

Rheem code r: homeowner questions

What does Rheem code r mean?

Lockout indicator. Shown on the seven-segment displays when the IFC is in lockout (defined in the Fig. 45 troubleshooting chart, not in Table 16).

Is it safe to keep using my furnace with code r?

It depends on the cause. The furnace has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Can I reset Rheem code r myself?

You can try one reset (power off for 30 seconds, then on). If Rheem code r comes back, the cause is still there and a licensed technician should check it.

Who can fix Rheem code r near me?

Aurora Star Tech Inc. repairs Rheem furnaces in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: Furnace Not Turning On: What to Check · Furnace Blinking Light: What the Flash Codes Mean

Troubleshooting guides

Source: RGPE/RGLE: Table 16 p.49 / Table 20; Fig. 45 p.63. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency Furnace Repair

647-657-2977