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    Carrier HH18HV125 95-125F Auto Limit Switch

    Carrier

    MSRP: $91.51
    Now: $70.71
    95-125F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $91.51
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    Carrier HH18HV120 90-120F Auto Limit Switch

    Carrier

    MSRP: $87.88
    Now: $67.91
    90-120F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $87.88
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    Carrier HH18HV110 90-110F Auto Limit Switch

    Carrier

    MSRP: $140.43
    Now: $106.39
    90-110F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $140.43
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    Carrier HH18HV100 90-100F Auto Limit Switch

    Carrier

    MSRP: $196.99
    Now: $149.24
    90-100F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $196.99
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    Carrier HH18HH130 Limit Switch

    Carrier

    MSRP: $22.42
    Now: $16.99
    Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $22.42
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    Carrier HH18HC350 350F SPDT Rollout Switch

    Carrier

    MSRP: $126.49
    Now: $97.74
    350F SPDT Rollout Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $126.49
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    Carrier HH18HC196 195F M/R SPST Rollout Switch

    Carrier

    MSRP: $66.31
    Now: $51.24
    195F M/R SPST Rollout Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $66.31
    Now: $51.24
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    Carrier HH18HA509 155-195F Auto Limit Switch

    Carrier

    MSRP: $15.26
    Now: $11.79
    155-195F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $15.26
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    Carrier HH18HA508 120-160F Auto Limit Switch

    Carrier

    MSRP: $19.95
    Now: $15.41
    120-160F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $19.95
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    Carrier HH18HA507 145-185F Auto Limit Switch

    Carrier

    MSRP: $13.27
    Now: $10.25
    145-185F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $13.27
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    Carrier HH18HA505 Limit Switch

    Carrier

    MSRP: $13.68
    Now: $10.57
    Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $13.68
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    Carrier HH18HA504 180-220F Auto Limit Switch

    Carrier

    MSRP: $13.04
    Now: $10.07
    180-220F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $13.04
    Now: $10.07
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    Carrier HH18HA502 140-180F Auto Limit Switch

    Carrier

    MSRP: $13.83
    Now: $10.68
    140-180F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $13.83
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    Carrier HH18HA499 125-165F Auto Limit Switch

    Carrier

    MSRP: $13.33
    Now: $10.30
    125-165F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $13.33
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    Carrier HH18HA496 160-200F Auto Limit Switch

    Carrier

    MSRP: $14.55
    Now: $11.25
    Carrier HH18HA496 160-200F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $14.55
    Now: $11.25
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    Carrier HH18HA495 350F M/R Limit Switch

    Carrier

    MSRP: $14.92
    Now: $11.53
    350F M/R Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $14.92
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    Carrier HH18HA493 101-200F Auto Limit Switch

    Carrier

    MSRP: $14.50
    Now: $11.21
    Carrier HH18HA493  101-200F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $14.50
    Now: $11.21
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    Carrier HH18HA490 290F M/R SPST Rollout Switch

    Carrier

    MSRP: $15.81
    Now: $12.21
    Carrier HH18HA490   290F M/R SPST Rollout Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $15.81
    Now: $12.21
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    Carrier HH18HA470 100-170F Auto Limit Switch

    Carrier

    MSRP: $8.96
    Now: $6.92
    100-170F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $8.96
    Now: $6.92
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    Carrier HH18HA465 100-165F Auto Limit Switch

    Carrier

    MSRP: $19.47
    Now: $15.04
    100-165F Auto Limit Switch   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $19.47
    Now: $15.04
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HVAC Replacement Switches

Without switches, your furnace or air conditioner would simply run non-stop without any method of controlling it. Furnace switches provide a useful service by regulating pressure and power to different modules, which in turn allow your equipment to work in the way that you expect.

Though it can be somewhat of a challenge to find the appropriate switch for any given use case, it can help to locate the brand name and re-order or part number if applicable. While dimensions are provided for each switch in question, the catalog numbers are more than sufficient for finding the correct component in the vast majority of situations.

Pressure Switches

Pressure levels aren’t something to fool around with, considering that excessive pressure measurements could potentially cause a line rupture or other malady. Simply installing a new York Controls limit switch might be enough to slash the possibility of this happening. Take a few moments to check your entire HVAC installation and locate any places where you might be better off with having added a few additional switches like this.

Though you might think that such a simple component is more or less static, nothing could be further from the truth. Updated Lochinvar & A.O. Smith switches are an excellent representation of what new switch technologies are doing to revitalize the industry.

Engineering teams are constantly working on new solutions in this space. While it might not always be obvious and most innovations are incremental at this point, newer switches often boast better build quality and a greater degree of safety as a result of over-engineered points.

Depending on the type of application you’re installing this equipment on, you might find that these designs are considerably more durable than anything you previously used. That’s excellent news for commercial and retail operators in particular since mission-critical operations are quite common in those spaces.

Roll Out Switches

Usually, roll-out switches are found on gas furnaces and they’re used as a safety device. If a gas flame suddenly goes out, then the roll-out switch turns the gas off so that you can’t have a sudden ignition later on. They’re extremely important for this reason, and many jurisdictions require their installation for safety reasons.

Fortunately, there are options from brands like Utica-Dunkirk that can help to dramatically reduce the risk of any accident caused by a flame suddenly going out. All of these roll-out switches are designed to meet or exceed the specifications provided by manufacturers for any piece of equipment that could potentially mount one. As a result, the installation of one could potentially prove to be an upgrade.

Match The Right Switches To Your HVAC System With Furnace Part Source

Traditionally, it can be difficult to match the exact switches needed for a project because of the wide variety. That’s why our team here at Furnace Part Source has put together such a comprehensive collection of switches. They should serve the needs of the greatest number of clients.

Those who run into a snag finding the right safety feature can always use our online contact form. Furnace Part Source will supply HVAC technicians with the necessary components for air conditioning or furnace repair.