Payne Furnace 42 Error Code — Meaning & Repair Cost (2026)
Inducer outside valid speed range (four short flashes followed by two long flashes). Below: the most likely causes, and what the matching repair costs — Estimated national ranges with a metro localizer. Reviewed July 2026.
What 42 means
Inducer outside valid speed range (four short flashes followed by two long flashes).
Likely causes, most common first
- Failed inducer (draft) motor
- Failed furnace control board
Base: 1 published national repair-cost guide (retrieved 2026-07) · full source registry on the methodology page · Code meaning & causes · Reviewed July 2026
What it usually costs to fix Estimated
42 on a Payne furnace resolves to the gas furnace not heating / blowing cold air problem. Payne parts typically run ×0.88 against the mainstream baseline (Carrier's explicit budget/builder-grade line ("Carrier's economy brand"), sold to production home builders "by the thousands." One brand review quantifies it directly: "Carrier engineering at 25-30% lower cost." A separate parts-focused source notes Payne shares the same core wear parts (compressors, control boards, capacitors, contactors) as Carrier/Bryant — set modestly above Goodman to reflect that the price gap is more about controls/cabinet/warranty tier than a distinct cheaper-parts channel, while still tracking its explicit budget positioning.), and the ranges below already include it.
$75–$720 national estimate to fix the fault behind 42 (Payne parts ×0.88). Enter a ZIP to localize.
| Most common repair | Typical total | DIY? |
|---|---|---|
| Hot-surface igniter replacement (installed) | $150–$340 | DIY possible |
| Flame sensor cleaning or replacement | $75–$245 | DIY possible |
| Gas valve replacement | $290–$720 | Pro recommended |
| Integrated furnace control (IFC) board replacement | $295–$665 | Pro recommended |
Plus a typical service-call / diagnostic fee of $75–$150, often credited toward the repair.
Pick a quality tier for a class-typical estimate, or a specific brand to override it (brand adjusts the parts portion only). Enter a ZIP or Canadian postal code to localize to your metro's labor costs. Everything updates without a page reload; no data leaves your browser except the shard lookup.
Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · National base range (BLS OEWS May 2025 + BEA RPP 2024) · Reviewed July 2026 · Estimated
Codes are universal — your location changes the repair price, never the code's meaning. See the methodology for the exact localization formula and sources.
Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).