HVACopediaRheem · Furnace
r Lockout indicator
What the control is telling you
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+
Likely causes
- Repeated ignition failure or other lockout fault
Test and repair steps
- Read the fault buffer (power reset shows the last five codes) to find the cause.
- Fix the cause.
- Shut off main power, wait 30 s and restore, or remove and re-establish the heat call.
Settings for these units
- Filter sizes as shipped, upflow (Table 19) · RGPE/RGLE
- Reduced clearance to combustibles (Fig. 3 and 4) · RGPE/RGLE
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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.