HTP · Boiler

LOCKOUT Lockout (display message)

Normal status Elite EL

What the display is showing

Red FAULT light steady and word LOCKOUT on the lower line; the control judged it unsafe to restart.

Applies to: EL-80, EL-110, EL-150, EL-220, EL-299, EL-399 (N/LP)

Good to know

See the fault code shown with it.

What to do

Note the fault code
Repair the cause
Press RESET for more than 1 second to clear

Models that show this code

12 models in Elite EL

EL-110 LPEL-110 NEL-150 LPEL-150 NEL-220 LPEL-220 NEL-299 LPEL-299 NEL-399 LPEL-399 NEL-80 LPEL-80 N

Other codes on the same units

FL Low water flow
FLU High flue pressure
FOU Outdoor sensor fault
GAS VALVE ON / RUN Ignition then run status
LOU 24 volt supply low
MAINTENANCE REQUIRED Service reminder
PP Control programmed
PRO Low water pressure

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Source: Elite EL-80 N Installation Manual (LP-293), p. 65. Summarized in our own words; check the original manual for your model.

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.