HVACopediaHTP · Boiler · Ignition
Ignition retries and lockout
What happens, in order
- Ignition sequence starts on a heat call
- If flame is not proven the control tries again
- After four failed tries in one call, F09 lockout
- Red FAULT light, LOCKOUT shown, alarm output on, pump runs
- Once flame is lit, losing it three times in one call gives F10 lockout
- Flame present when none is wanted gives F11 lockout
- Reset with RESET over 1 second after the cause is fixed
Timings and thresholds
| Item | Value |
|---|---|
| Failed ignition tries | 4 per call |
| Flame loss events | 3 per call |
| Fan speed error limit | 30% off for over 10 s |
Codes you may see during this
Applies to: EL-80, EL-110, EL-150, EL-220, EL-299, EL-399 (N/LP)
More HTP boiler sequences
- Central heat call · Heating
- Outdoor reset and warm weather shutoff · Heating
- Indirect water heater call · Domestic hot water
- Pump service mode · Pump/purge
- Standby and over-temperature protection · Standby/shutdown
- Cascade operation · Other
Related
Take it to the job
Sequences of operation, error codes and tips work offline in the HVACopedia app.
Source: Elite EL-80 N Installation Manual (LP-293), p. 65, p. 71, p. 72. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.
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.