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GAS VALVE FAIL

Lennox · EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace

Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace GAS VALVE FAIL Error Fix: Gas Valve Failure

The gas valve is not opening, not closing, or not modulating properly. Symptoms: igniter glows but gas never flows (stuck closed), gas smell without ignition (leaking). On modulating furnaces (SL297NV), flame height may not modulate. Test solenoid coils for continuity. Verify 24 VAC at gas valve terminals when control calls for gas. Gas valve replacement should be performed by a qualified technician.

High severity2 fixes available✨ Free fix available

Quick Answer

Error GAS VALVE FAIL on the Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace means: Gas Valve Failure. The top-ranked community fix is “Test and Replace Gas Valve Solenoid Coils” (hard difficulty, ~90 min, DIY cost: $15-$40). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · furnace

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many furnace repairs can be done safely at home, consider hiring a qualified technician if:

This is a high severity error — continued use may cause damage or a safety hazard
The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $300-$450.

Other Lennox Models with Error GAS VALVE FAIL

ML196E Merit Series 96% AFUE Single-Stage Gas Furnace

furnace · 2 fixes

SL280V Dave Lennox Signature Collection 80% AFUE Variable Speed Gas Furnace

furnace · 2 fixes

SL297NV Dave Lennox Signature Collection 97% AFUE Modulating Variable Speed Gas Furnace

furnace · 2 fixes

Other Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace Error Codes

1 FLASH

No Previous Fault Code Stored

2 fixes

10 FLASHES

Blower Motor Calibration Fault

2 fixes

11 FLASHES

Auxiliary Limit Switch Open

Inducer Motor Fault

Communicating System Fault

2 fixes

2 FLASHES

System Lockout — Retries Exhausted

2 fixes

3 FLASHES

Pressure Switch Stuck Closed

2 fixes

4 FLASHES

Pressure Switch Open — Did Not Close

2 fixes

People Also Ask About Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace Error GAS VALVE FAIL

What does error code GAS VALVE FAIL mean on a Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace?

Error code GAS VALVE FAIL on the Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace means: Gas Valve Failure. The gas valve is not opening, not closing, or not modulating properly. Symptoms: igniter glows but gas never flows (stuck closed), gas smell without ignition (leaking). On modulating furnaces (SL297NV), flame height may not modulate. Test solenoid coils for continuity. Verify 24 VAC at gas valve terminals when control calls for gas. Gas valve replacement should be performed by a qualified technician.

How do I fix error code GAS VALVE FAIL on my Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace?

The most successful fix is "Test and Replace Gas Valve Solenoid Coils" (hard difficulty, ~90 minutes). Estimated DIY cost: $15-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code GAS VALVE FAIL on a Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace serious?

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Can I fix Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace error GAS VALVE FAIL myself?

Yes — the top-ranked community fix ("Test and Replace Gas Valve Solenoid Coils") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Digital multimeter, Adjustable wrench, Pipe sealant rated for gas.

How much does it cost to repair Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace error GAS VALVE FAIL?

DIY cost: $15-$40. Professional repair typically costs $300-$450. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace have?

The Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace has 8 other known error codes, including: 1 FLASH (No Previous Fault Code Stored), 10 FLASHES (Blower Motor Calibration Fault), 11 FLASHES (Auxiliary Limit Switch Open), 12 FLASHES (Inducer Motor Fault), 13 FLASHES (Communicating System Fault), and 3 more.

Which other Lennox models have the GAS VALVE FAIL error?

Error code GAS VALVE FAIL also appears on 3 other Lennox models: ML196E Merit Series 96% AFUE Single-Stage Gas Furnace, SL280V Dave Lennox Signature Collection 80% AFUE Variable Speed Gas Furnace, SL297NV Dave Lennox Signature Collection 97% AFUE Modulating Variable Speed Gas Furnace. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace have?

The Lennox EL296V Elite Series 96% AFUE Two-Stage Variable Speed Gas Furnace has 8 other known error codes:

1 FLASH — No Previous Fault Code Stored (2 fixes)
10 FLASHES — Blower Motor Calibration Fault (2 fixes)
11 FLASHES — Auxiliary Limit Switch Open (2 fixes)
12 FLASHES — Inducer Motor Fault (2 fixes)
13 FLASHES — Communicating System Fault (2 fixes)
2 FLASHES — System Lockout — Retries Exhausted (2 fixes)
3 FLASHES — Pressure Switch Stuck Closed (2 fixes)
4 FLASHES — Pressure Switch Open — Did Not Close (2 fixes)

Which other Lennox models have the GAS VALVE FAIL error?

Error code GAS VALVE FAIL also appears on 3 other Lennox models:

ML196E Merit Series 96% AFUE Single-Stage Gas Furnace (furnace) · 2 fixes
SL280V Dave Lennox Signature Collection 80% AFUE Variable Speed Gas Furnace (furnace) · 2 fixes
SL297NV Dave Lennox Signature Collection 97% AFUE Modulating Variable Speed Gas Furnace (furnace) · 2 fixes

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