HVACopedia

Lennox · Furnace

8 flashes Rollout switch open

Critical severity Lennox EL195UHNE

What the control is telling you

The flame rollout switch has opened. Gas is off, inducer and blower run. The sequence holds until the switch is reset and power or thermostat is cycled.

Applies to: EL195UHNE furnaces with ignition control 103217-03 or 107163-01 (red LED)

Likely causes

  • Blocked heat exchanger
  • Blocked vent or intake
  • Plugged condensate drain
  • Burner problem / wrong air orifice

Test and repair steps

  1. Warning: A rollout means flame came out of the burner area - find the cause before resetting.
  2. Inspect intake and exhaust pipes and terminations for blockage (snow, ice, nests).
  3. Check the condensate trap and drain are clear and primed.
  4. Inspect burner and heat exchanger; check air orifice is correct (Table 20).
  5. Reset the switch, then cycle main power or the thermostat off/on for at least 1 second; watch a full firing cycle.

Settings for these units

Save it for the next call

Star this code in the HVACopedia app and keep the whole library on your phone for jobs with no signal.

Open the app

Source: Lennox EL195UHNE Unit Information Corp 1801-L1 (rev 04/2024), Table 4 (103217-03) / Table 5 (107163-01) diagnostic codes, p.8-10; flowchart p.51-52. 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.