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Furnace Control Board

Furnace Control Board

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    York S1-6434431 Circuit Board 2 Stage W/Comm

    York

    MSRP: $1,977.28
    Now: $1,497.94
    York S1-6434431 Circuit Board 2 Stage W/Comm FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $1,977.28
    Now: $1,497.94
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    Lochinvar & A.O. Smith 100330185 Display Assembly Interface

    Lochinvar & A.O. Smith

    MSRP: $1,909.91
    Now: $1,475.84
    Lochinvar & A.O. Smith 100330185 Display Assembly Interface FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $1,909.91
    Now: $1,475.84
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    York S1-5883201 CTB Circuit Board

    York

    MSRP: $1,757.56
    Now: $1,358.12
    York S1-5883201 CTB Circuit Board FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $1,757.56
    Now: $1,358.12
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    ClimateMaster 17S0012N12 (Replaces 17B0012N06) Circuit Board

    Climatemaster

    MSRP: $1,904.89
    Now: $1,471.96
    ClimateMaster 17S0012N12 (Replaces 17B0012N06) Circuit Board This is the Direct Replacement for 17B0012N06 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No...
    MSRP: $1,904.89
    Now: $1,471.96
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    Carrier 30RB660062 EXVB1,2, Board Kit

    Carrier

    MSRP: $1,628.52
    Now: $1,258.40
    Carrier 30RB660062 EXVB1,2, Board Kit FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $1,628.52
    Now: $1,258.40
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    Sanyo HVAC 6233172927 Circuit Board

    Sanyo HVAC

    MSRP: $1,663.18
    Now: $1,259.99
    Sanyo HVAC 6233172927 Circuit Board   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $1,663.18
    Now: $1,259.99
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    Raypak 007902F Pc Board

    Raypak

    MSRP: $1,562.70
    Now: $1,207.54
    Raypak 007902F Pc Board  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,562.70
    Now: $1,207.54
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    Lennox X4136 Transformer/Circuit Board

    Lennox

    MSRP: $1,752.93
    Now: $1,327.98
    Lennox X4136 Transformer/Circuit Board   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $1,752.93
    Now: $1,327.98
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    Carrier HK38EA012 Circuit Board

    Carrier

    MSRP: $1,484.82
    Now: $1,147.36
    Carrier HK38EA012 Circuit Board   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $1,484.82
    Now: $1,147.36
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    Carrier 0170307H23 Circuit Board

    Carrier

    MSRP: $1,841.05
    Now: $1,422.63
    Circuit Board   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $1,841.05
    Now: $1,422.63
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    YorkCircuit Board Kit Part # S1-373-28175-000

    York

    MSRP: $1,562.17
    Now: $1,207.13
    York® Circuit Board Kit Part # S1-373-28175-000; Choose $12.50/2-Day Delivery anywhere in the lower 48 United States; Backed by a One Year Warranty.
    MSRP: $1,562.17
    Now: $1,207.13
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Shop Furnace & HVAC Control Boards

If your heating or cooling system is acting up, a faulty control board may be the culprit. Furnace Part Source carries a wide selection of replacement control boards for furnaces, air conditioners, and other HVAC systems. Whether you need a furnace control board, AC control board, or general HVAC circuit board, we offer OEM replacements for major brands like Carrier, Trane, Nordyne, Goodman, and York.

Our catalog is designed for homeowners, HVAC professionals, electricians, and handymen looking to make fast, affordable repairs. Every control board we stock is brand-new, guaranteed genuine, and ready to ship—no minimum order required.

Reliable Control Board Replacements at Your Fingertips

Control boards are the “brains” of your heating and cooling equipment. When they fail, your entire system may stop responding, misfire, or behave erratically. That’s why we carry a variety of furnace control boards with different input/output configurations, ignition types, and diagnostic capabilities to match both older and newer systems.

With over 500,000 HVAC parts in stock and same-day shipping available, Furnace Part Source makes it easy to get your furnace circuit board or HVAC control board delivered quickly and reliably. Not sure which model you need? Our support team is available 24/7 to help match part numbers or recommend replacements.

Frequently Asked Questions

What is a furnace control board?
A furnace control board is an electronic component that manages all of the operations of a furnace—ignition, blower fan timing, safety checks, and communication with the thermostat.

How do I know if my HVAC control board is bad?
Common signs include no response from the system, flashing error lights, or short-cycling. If your thermostat is working but your system isn’t responding, the control board may be the issue.

Can I replace a furnace control board myself?
Many experienced homeowners and handymen choose to replace furnace control boards themselves. However, always disconnect power and confirm compatibility before installation.

How much does it cost to replace a furnace control board?
Furnace control board replacement cost can range from $100–$600 depending on the brand and model. Ordering the part yourself and installing it can save significantly on labor costs.