Carrier
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Carrier HH18HA122 117-120F Auto Limit Switch
Carrier
MSRP: $339.72Now: $262.51117-120F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $339.72Now: $262.51 -
Carrier HH18HA123 Limit Switch
Carrier
MSRP: $24.37Now: $18.83Carrier HH18HA123 Limit Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $24.37Now: $18.83 -
Carrier HH18HA126 90-125F Auto Limit Switch
Carrier
MSRP: $184.59Now: $139.8490-125F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $184.59Now: $139.84 -
Carrier HH18HA130 100-130F Auto Limit Switch
Carrier
MSRP: $54.25Now: $41.92Carrier HH18HA130 100-130F Auto Limit Switch Item is Non Cancelable / Non Returnable FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...MSRP: $54.25Now: $41.92 -
Carrier HH18HA137 90-130F Auto Limit Switch
Carrier
MSRP: $50.49Now: $39.0290-130F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $50.49Now: $39.02 -
Carrier HH18HA138 95-135F Auto Limit Switch
Carrier
MSRP: $27.47Now: $21.2395-135F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...MSRP: $27.47Now: $21.23 -
Carrier HH18HA141 100-140F Auto Limit Switch
Carrier
MSRP: $41.98Now: $31.80Carrier HH18HA141 100-140F Auto Limit Switch Item is Non Cancelable / Non Returnable FurnacePartSource.com Commitment Item Typically Ships Within the Same Business...MSRP: $41.98Now: $31.80 -
Carrier HH18HA147 SWITCH LIMIT
Carrier
MSRP: $82.04Now: $63.39Carrier HH18HA147 SWITCH LIMIT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $82.04Now: $63.39 -
Carrier HH18HA148 110-150F Auto Limit Switch
Carrier
MSRP: $13.23Now: $10.23110-150F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...MSRP: $13.23Now: $10.23 -
Carrier HH18HA150 150F Limit Switch
Carrier
MSRP: $40.72Now: $31.47150F Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...MSRP: $40.72Now: $31.47 -
Carrier HH18HA160 Temperature. Switch
Carrier
MSRP: $42.85Now: $33.11Temperature. Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $42.85Now: $33.11 -
Carrier HH18HA166 160F CO Auto Limit Switch
Carrier
MSRP: $48.06Now: $37.14160F CO Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $48.06Now: $37.14 -
Carrier HH18HA169 LIMIT SWITCH
Carrier
MSRP: $13.53Now: $10.45Carrier HH18HA169 LIMIT SWITCH FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $13.53Now: $10.45 -
Carrier HH18HA170 L170-40F Limit Switch
Carrier
MSRP: $87.99Now: $68.00L170-40F Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $87.99Now: $68.00 -
Carrier HH18HA185 Limit Switch
Carrier
MSRP: $14.02Now: $10.84Carrier HH18HA185 Limit Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $14.02Now: $10.84 -
Carrier HH18HA187 80-180F Auto Limit Switch
Carrier
MSRP: $83.24Now: $64.3280-180F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements ...MSRP: $83.24Now: $64.32 -
Carrier HH18HA192 140-190F AUTO Limit Switch
Carrier
MSRP: $101.33Now: $78.30Carrier HH18HA192 140-190F AUTO Limit Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum...MSRP: $101.33Now: $78.30 -
Carrier HH18HA194 140-180F M/R LIMIT SWITCH
Carrier
MSRP: $67.96Now: $52.52Carrier HH18HA194 140-180F M/R LIMIT SWITCH FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum...MSRP: $67.96Now: $52.52 -
Carrier HH18HA195 Limit SWT M/R Open 195F
Carrier
MSRP: $86.59Now: $66.91Limit SWT M/R Open 195F FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $86.59Now: $66.91 -
Carrier HH18HA197 Limit Switch
Carrier
MSRP: $120.14Now: $92.83Carrier HH18HA197 Limit Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $120.14Now: $92.83
Carrier Furnace & HVAC Replacement Parts
Carrier is a leading HVAC brand with a long-standing reputation for reliable heating and cooling systems. When a Carrier unit requires service, sourcing the correct OEM replacement parts—such as blower motors, ignition modules, flame sensors, control boards, gas valves, and limit switches—is vital for restoring performance and maintaining safety.
Maintenance & Repair Focus
Maintenance of a Carrier system often involves replacing wear-items and diagnostic parts. Typical replacement part categories include:
- Ignitors & Flame Sensors – For safe burner ignition and flame detection.
- Blower Motors & Capacitors – To restore proper airflow and system efficiency.
- Gas Valves & Pressure Switches – To ensure correct fuel delivery and combustion safety.
- Control Boards & Limit Switches – To maintain proper operation of sequence logic and safety limits.
- Wiring Harnesses & Filters – Supporting reliable connectivity and airflow integrity.
Why OEM Carrier Parts Matter
Using genuine Carrier replacement parts ensures:
- Exact fit for your model and serial number.
- Maintained efficiency and safety ratings consistent with factory standards.
- Compatibility with control logic and system design.
Carrier itself states that “Factory Authorized Parts … preserve the original efficiency of the system.” By selecting OEM or approved equivalent parts, you avoid common pitfalls of mismatched replacements that may degrade performance or invalidate warranty conditions.
How to Select the Correct Part
Before ordering, verify:
- The model number and serial number of your Carrier unit.
- The part number or description of the failing or service component.
- Whether your system is residential or commercial, as system design may differ significantly.
Tools such as Carrier’s official parts diagrams and OEM lookup references can help ensure you identify the right component. Once you have accurate details, sourcing an exact match will reduce downtime and maintain full system function.
FAQs
How do I find the right OEM part for my Carrier system?
Locate the model and serial number on your unit’s rating plate, then match that to the part number in Carrier’s OEM parts list or diagrams.
Why should I use Carrier-branded replacement parts rather than generic equivalents?
Carrier-branded (or Factory Authorized) parts are engineered to the original specifications, ensuring proper fit, performance, and longevity.
What are the most commonly replaced parts in Carrier furnaces?
Commonly replaced parts include ignitors, flame sensors, blower motors, control boards, and gas valves—typically due to wear or age.
Can I service a Carrier commercial unit the same as a residential unit?
The same principles apply—correct part selection, model verification, and maintenance best practices—but commercial systems often use higher-capacity components and may require specialized service procedures.
Does replacing a part with an OEM Carrier component improve efficiency?
Yes. A correct, functioning OEM replacement part helps your system operate at its designed efficiency, prevents unnecessary cycling or faults, and maintains original performance.
For more information, visit Furnace Part Source or explore Carrier’s official resources for part identification and system support. You can also consult Carrier part diagrams and Repair Clinic for additional guidance.