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HVAC

Lennox Lennox 2-stage furnace (7 years old)

What is likely to break, when it happens, and how expensive it can be — from source-linked reports.

Reliability signal — · Insufficient data · data confidence Very Low

1 failure reports

Reliability summary

What is likely to go wrong, when it happens, and how expensive it can be — from source-linked failure reports.

Reliability signal

—

1 failure report · Insufficient data · Data confidence: Very Low

Need at least 5 failure-signal reports before showing an A–F grade.

Most common issue: Low pressure switch failed open (E223)
Typical first failure: 7 yr; Median of reports with timing
Median repair cost: —; Reported costs only
Highest reported repair: —; Not a guarantee

What breaks?

Failure types

Click a type in the reports section below to filter.

Low pressure switch failed open (E223)1 · 100%

When does it break?

Failure timing

Months after purchase, using reports that included timing.

What does it cost?

Reported repair costs

Distribution of owner-reported repair costs — not a quote or guarantee.

No reported repair costs yet for this model.

Median months to failure

Failure reports

Median repair cost

—

Still recommend

—

% repaired

100%

% mfr warranty

% extended warranty

100%

% support helpful

100%

Use these reports as a risk signal, then check current listings before you buy.

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What breaks?

What breaks? · reports

Low pressure switch failed open (E223)

Low/high pressure switch assembly

84 months

Source-linkedVerify source — Reddit post

Seven-year-old Lennox two-stage furnace failed to start with error E223 low pressure switch failed open. A tech confirmed the switch would not close at the correct pressure, found a spider in the low-pressure port, and still replaced out-of-spec low/high pressure switches as an assembly under Lennox extended parts warranty.

UnverifiedEvidence ★★★☆☆Not under mfr warrantyExtended warranty

View report details

Months until failure

84 months

Repair cost

Not stated

Repaired

Yes

Manufacturer warranty

Extended warranty

Yes

Support helpful

Yes

Would recommend

Not stated

AI extraction confidence

91%

Verification status

Unverified

Evidence quality

★★★☆☆ (3/5)

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