EL195NE

This board

SureLight 7-seg IFC (E2xx)

• Idle is a decimal blink at 1 Hz (0.5 s on / 0.5 s off). That is not a fault.
• Faults are E plus three digits. Write the full number. E225 ≠ E223 ≠ E229.
• Pushbutton menu: E = recall last 10 (c twice to clear). F = flame µA. P = program unit size (VS only).
• This chart is the 107045-XX / 103130-XX SureLight family used on EL296V. Confirm any odd extra code on THAT door card before you order a part.
• E105-style RS-bus codes appear only if iComfort is wired. Many EL296V jobs are 24V.

Sequence

1. W1. Low inducer → low PS must close. Failure here is E223 / E227 / later E229.
2. Trial. HSI (E207 / E290 if the circuit is open) → low-fire valve (E204–E206) → flame (E240 / E270 if no µA).
3. W2 / high. High inducer → high PS. E225 if high-fire prove fails. E229 = IFC abandoned low-fire prove and lit on high.
4. Limits. E250 = limit string open. Open >3 min or recycle-on-limit becomes E274. E252 = discharge air too high.
5. Blower. VS motor talks serial to the IFC. After a board or motor swap, P-menu unit size must match or you get E201 / E202 / E203.

Faults on this IFC

• idle

  Decimal blink

  info

  Idle / heartbeat. Decimal blinks 1 Hz. Not a fault.

  • If you expected a code, press E for recall — idle only means nothing is active right now.
• E

  Error recall

  info

  Menu: last 10 stored codes.

  • Write them in order before you clear.
  • c then c again while flashing erases. Do not clear until you have the stack.
• F

  Flame signal

  info

  Menu: live flame current in µA on the 7-seg.

  • Use this on an E240 / E270 call instead of guessing the rod.
  • Exits on power reset, hold-to-bars, or 10 minutes.
• P

  Program unit size

  info

  VS only. Stores cabinet / motor capacity in non-volatile memory.

  • Required after IFC or blower swap. Wrong or blank size → E202 / E203.
  • Follow the P-menu character for THIS EL296V cabinet, then hold to accept.
• E105

  RS BUS communication

  lockout

  No other devices on the RS bus, or the bus is too noisy to talk.

  • Only if iComfort is actually wired — i+/i− polarity, one communicating control, indoor/outdoor on the bus.
  • Many EL296V jobs are 24V. E105 on a 24V-only install means data wires landed on the RS terminals. Pull them.
• E111

  Low line voltage

  lockout

  Line voltage below nameplate. Control waits; resumes ~5 s after voltage recovers.

  • L1 to N at the IFC, not just the disconnect. Brownout, loose lug, undersized circuit.
  • Some older EL296UHE cards print E110 as low line and E111 as polarity reversed — confirm THAT door card.
• E112

  Ground not detected

  lockout

  IFC does not see earth ground. Unit shuts down.

  • Green to cabinet and IFC. Painted screw / missing star washer.
  • Resumes ~5 s after a real ground is provided.
• E113

  High line voltage

  lockout

  Line voltage above nameplate.

  • Measure at the IFC. Boost transformer, generator, or utility high.
  • Resumes ~5 s after voltage is in range.
• E114

  Line frequency out of range

  lockout

  No clean 60 Hz. OEM: no 60 Hertz power.

  • Generator / inverter / poorly conditioned backup power is the usual.
  • Utility frequency events are rare — confirm you are not on a job-site gen set.
• E115

  Low 24V

  lockout

  Secondary below ~18–30 V class. Control restarts if voltage recovers.

  • 24 VAC at the IFC under load. Extra accessories robbing the transformer.
  • Door-switch / shorted valve / undersized VA. Fix the load before you upsize the transformer.
• E117

  Poor ground

  warn

  Ground is present but dirty. Warning only — clears ~30 s after it recovers.

  • Same ground path as E112, just not open. Flame µA and HSI both suffer.
  • Do not ignore a repeating E117 on an E240 / E270 call.
• E201

  Indoor blower communication failure

  lockout

  IFC lost serial talk with the VS indoor blower (including a motor that never powered up).

  • Motor harness seated at IFC and module. 120/240 at the motor, not just the IFC.
  • After a board or motor swap this is usually P-menu / wrong motor — see E202 / E203.
• E202

  Indoor blower HP / unit capacity mismatch

  lockout

  Programmed unit size does not match the motor horsepower the IFC sees.

  • P menu: pick the character for THIS cabinet, hold to store, let the IFC reset.
  • An EL296E constant-torque motor in this VS cabinet will throw E202 / E310. Use the VS motor.
• E203

  Appliance capacity not programmed

  lockout

  Unit size code is blank or invalid after a new IFC.

  • This is a P-menu job, not a bad motor. Program size, then retest.
  • Remove the stat from the bus if iComfort is fighting the program cycle.
• E204

  Gas valve mis-wired

  lockout

  Valve harness does not match what the IFC commanded.

  • Stage 1 / stage 2 leads on the correct valve terminals. Pinched or swapped harness.
  • Clears when the wiring is repaired — do not replace the IFC first.
• E205

  Gas valve control relay shorted

  lockout

  IFC thinks its valve relay contacts are shorted.

  • Unplug the valve. If E205 stays, the IFC relay is the fault.
  • If it clears, ohm the valve coil and harness for a short to chassis.
• E206

  Second-stage gas valve relay failure

  warn

  High-fire solenoid will not drive. OEM: furnace runs first stage only for the rest of the call.

  • W2 present? 24 VAC at stage-2 coil on a high call.
  • If wiring is good and it never stages, replace the IFC — it is already heating on low.
• E207

  HSI sensed open

  lockout

  Hot-surface ignitor circuit measures open.

  • Cold ohms at the ignitor, then at the IFC. Replace if open or out of the IOM range.
  • Harness rub-through on the collector is common on these cabinets.
• E223

  Low PS failed OPEN

  lockout

  Low-fire pressure switch did not close on the heat call.

  • Inducer actually on low? Low-fire hose only, 96% trap, PVC intake/exhaust.
  • Clean the inducer pressure port — known EL296. Dust packs the port and throws the whole PS family.
• E224

  Low PS failed CLOSED

  lockout

  Low-fire switch is made when it should be open.

  • Unplug the low switch. Water in the hose or a welded switch.
  • Inducer still coasting / hose holding residual draft.
• E225

  High PS failed OPEN

  lockout

  IFC commanded high; high-fire switch did not close.

  • Does the inducer actually go high?
  • High-fire hose not teed to the low switch. Vent capacity on 110/135 kBtu cabinets.
• E226

  High PS failed CLOSED

  lockout

  High-fire switch is made when it should be open.

  • Unplug the high switch only. Water or a welded disc.
  • W2 shorted so the IFC thinks it should already be in high.
• E227

  Low PS opened during trial or run

  lockout

  Low switch had closed, then opened mid-trial or in run.

  • Wind, ice, trap siphon, inducer dropping out after light-off.
  • Same port-clean as E223 — a half-clogged port will make then drop.
• E228

  Combustion air inducer calibration failure

  lockout

  IFC could not finish pressure-switch calibration.

  • Vent and both hoses seated. Inducer must be able to sweep both switches.
  • Fix E223/E225 physics first — calibration will not pass on a clogged port.
• E229

  Ignition on high fire

  info

  Low-fire switch did not close in time, so the IFC ran the inducer high and lit on high. OEM: no action needed as a separate repair.

  • This is a low-fire draft problem wearing a high-fire costume. Fix E223 / E227 physics. Do not start on the high-fire manifold screw.
  • Also fires on high for ~60 s if continuous fan was already on (heat-exchanger warmup) — that one is information only.
• E240

  Low flame current — run mode

  warn

  Flame is present but µA is below the run threshold.

  • F menu for live µA. Clean the rod — not sandpaper. Neutral-to-ground and E117.
  • Clears at the end of the heat call. Repeating E240 becomes E270 / E273.
• E241

  Flame sensed out of sequence — flame still present

  hazard

  Rod sees flame with the valve de-energized. Flame is still there.

  • Shut the gas cock. Leaking valve — replace, do not jump.
  • If flame dies when you shut the cock, the IFC flame circuit / rod short is next.
• E250

  Limit switch circuit open

  warn

  Primary / rollout / secondary string is open. If it stays open >3 min the IFC goes to a 1-hour soft lockout (E274).

  • VS heat CFM vs the EL296 chart — not a 9-speed tap. Filter, coil, media cabinet.
  • Walk the rollout string if E270 / E274 also store. Manual-reset rollout is a hazard until the cause is gone.
• E252

  Discharge air too high

  warn

  Leaving-air temperature above the gas-heat limit (DAT sensor).

  • Rise vs plate. Heat CFM in the IFC, not a guess.
  • Input rate / manifold. Sensor itself only after airflow and fire are right.
• E270

  Soft lockout — max retries, no flame current

  lockout

  Tried to light, never saw flame current. Soft lockout. Clears on a successful heat call.

  • Watch a try: inducer, HSI glow, valve click, flame, then F-menu µA. Which step dies?
  • This is ignition, not rollout. The older field rumor that E270 ‘is rollout’ is wrong on this SureLight family — rollout lives in the E250 / E274 string.
• E271

  Soft lockout — last retry failed because PS opened

  lockout

  Retries used up; the last try died when a pressure switch opened.

  • Treat as a hardened E223 / E227. Port, trap, PVC, inducer.
  • Do not replace the ignitor because the stack says 270-family.
• E272

  Soft lockout — last recycle PS opened

  lockout

  Recycles used up; last recycle failed because a pressure switch opened.

  • It ran, then draft dropped. Wind, ice, trap siphon, inducer after light-off.
  • Same two-hose / port-clean as the E223 cluster.
• E273

  Soft lockout — last recycle flame failure

  lockout

  Recycles used up; last recycle lost flame signal.

  • F-menu µA, rod, ground, manifold after blower-on. Flame that dies when the wheel starts is often draft or a weak rod.
  • Pairs with E240.
• E274

  Soft lockout — last recycle limit open or limit >3 min

  lockout

  Recycles used up because the limit string opened, or a limit stayed open longer than 3 minutes.

  • Hardened E250. VS CFM, media cabinet, rise.
  • If a rollout is open in that string, stop and inspect the exchanger before you up the CFM.
• E275

  Flame out of sequence lockout

  hazard

  Soft lockout after out-of-sequence flame. Same hazard family as E241.

  • Shut the cock. Valve leak or IFC flame circuit.
  • 1-hour-class lockout. Do not keep resetting.
• E290

  Ignitor circuit fault

  lockout

  Failed ignitor or triggering circuitry. 1-hour soft lockout until flame proves stable.

  • Ohms the HSI. Open / out of IOM range = replace the ignitor.
  • Good ohms + no 120 VAC during trial = IFC / harness.
• E292

  Heat airflow restricted below minimum

  warn

  VS heat CFM is below the minimum the IFC will allow for this firing rate.

  • Filter, coil, wheel, return. Media cabinets on Elite jobs are the usual.
  • Some communicating SureLight cards print a different sentence next to E292 — confirm THAT door card before you condemn a motor.
• E310

  Blower unable to start

  lockout

  Indoor blower did not start — seized bearings / obstructed wheel class.

  • Spin the wheel. Ice, debris, rusted module, unplugged harness.
  • Door-card note: a few revisions park a DAT-sensor sentence on E310. If the card says sensor, treat it as a sensor. If it says wheel/bearings, treat it as a motor.
• E311

  Blower temperature too high

  warn

  Blower / module overtemp. IFC sheds or parks heat.

  • Static, wheel rub, module fins packed with dust.
  • After a motor swap, confirm you did not put an EL296E CT motor in this VS plug.
• E312

  Restricted airflow — cooling / CF

  warn

  Cooling or continuous-fan CFM is below the setting. Cutback / high-static warning.

  • Filter and duct. VS motor is already in torque limit (roughly 0–0.8 in. w.c. class).
  • Not a heat-call code. Do not chase E312 with a pressure switch.

Workflows

Test points

E-code

Three digits. E229 ≠ E225. Confirm odd extras on the door card.

Inducer port

Open to the collector, not packed with oxide. Two hoses, never teed.

Flame (F menu)

µA per EL296 card. Rising while running.

HSI

Cold ohms in the IOM range. 120 VAC during trial.

P menu

Unit size stored for this VS cabinet after any IFC or motor swap.

Gotchas

• SL297NV is the Signature communicating ULN. Different board, same burner idea.

Related plates

• lennox-sl297nv — Signature ULN VS.
• lennox-el196e — Standard Elite single-stage 96%.