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ST9120C Furnace Fan Control Board fits for Honeywell Furnace Fan | Fits for Honeywell,replace Furnace Fan Control Circuit Board, Replacement for ST9120C
SPORDA

ST9120C Furnace Fan Control Board fits for Honeywell Furnace Fan | Fits for Honeywell,replace Furnace Fan Control Circuit Board, Replacement for ST9120C

By , Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

$82.39

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*Price sourced from Amazon.com. Price and availability subject to change.

Bottom line: The ST9120C Furnace Fan Control Board fits for Honeywell Furnace Fan | Fits for Honeywell,replace Furnace Fan Control Circuit Board, Replacement for ST9120C is a niche pick — read recent reviews before buying in the retro motherboards category, priced around $82.39. Compare close alternatives before committing.

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SpecPicks Verdict

SpecPicks scored ST9120C Furnace Fan Control Board fits for Honeywell Furnace Fan |… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the retro motherboards category. SPORDA's retro motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for retro motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Backed by SPORDA's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • Universal Replacement for Aging Blower Controls: Directly fits for 40403-001, 40403-002, 40403-003 and ST9120A, B or C blower control models - no compatibility headaches. Solve those frustrating furnace shutdowns during winter's worst storms or summer heatwaves when your family needs comfort most
  • Heavy-Duty Power Handling for Modern HVAC Demands: Handles today's high-efficiency systems effortlessly with 15A startup surges (120V) for powerful blower motors, 3A inducer loads for quiet venting, and dual-voltage readiness (120V/240V) for flexible installations. No more tripped breakers during holiday gatherings
  • Plug-and-Play Upgrades for Healthier Air: Safely powers your air quality add-ons including humidifiers to combat dry winter skin and electronic cleaners to trap allergens. 0.8A terminals handle both simultaneously, allowing you to breathe easier without rewiring headaches
  • DIY-Friendly Protection That Saves Service Calls: Features a standard 5 amp automotive type fuse (included) - when electrical spikes hit, swap it like a car headlight bulb in 90 seconds flat. No emergency technician visits for minor surges after thunderstorms
  • Year-Round Reliability You Can Feel: Engineered to survive -30F attic winters without freezing up, 130F closet summers without overheating, and 10+ year lifespan through daily cycling. Wake up to warm air on icy mornings
  • Complete Compatibility Information: Designed as a direct replacement for Honeywell ST9120C furnace fan control circuit boards, ensuring seamless integration with your existing HVAC system without modifications or adapters required

Full Specifications

BrandSPORDA
Voltage‎120 volts
Part Number‎ST9120C
Included Components‎Furnace Fan Control Board
Warranty Description‎90 Days
Item Package Quantity‎1

Ready to buy?

ST9120C Furnace Fan Control Board fits for Honeywell Furnace Fan | Fits for Honeywell,replace Furnace Fan Control Circuit Board, Replacement for ST9120C is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Price and availability subject to change.

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ST9120C Furnace Fan Control Board fits for Honeywell Furnace Fan | Fits for Honeywell,replace Furnace Fan Control Circuit Board, Replacement for ST9120C
$82.39
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