Carrier
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Carrier HH18HA598 TEMP SWITCH
Carrier
MSRP: $9.92Now: $7.66Carrier HH18HA598 TEMP 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: $9.92Now: $7.66 -
Carrier HH18HA599 L280F MR Rollout Switch
Carrier
MSRP: $15.15Now: $11.70Carrier HH18HA599 L280F MR Rollout 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: $15.15Now: $11.70 -
Carrier HH18HA601 LIMIT SWITCH
Carrier
MSRP: $15.38Now: $11.88Carrier HH18HA601 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: $15.38Now: $11.88 -
Carrier HH18HA612 LIMIT SWITCH
Carrier
MSRP: $24.27Now: $18.76Carrier HH18HA612 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: $24.27Now: $18.76 -
Carrier HH18HB016 FREEZE THERMOSTAT
Carrier
MSRP: $30.23Now: $23.36Carrier HH18HB016 FREEZE THERMOSTAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $30.23Now: $23.36 -
Carrier HH18HB031 Freeze Thermostat SPST 30 Degree Open, 45 Degree Close
Carrier
MSRP: $60.22Now: $46.54Carrier HH18HB031 Freeze Thermostat SPST 30 Degree Open 45 Degree Close FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by...MSRP: $60.22Now: $46.54 -
Carrier HH18HB052 Defrost Thermostat
Carrier
MSRP: $22.37Now: $16.95Defrost Thermostat FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $22.37Now: $16.95 -
Carrier HH18HC065 Defrost Thermostat
Carrier
MSRP: $334.31Now: $253.26Defrost Thermostat FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $334.31Now: $253.26 -
Carrier HH18HC069 DEFROST TEMP SWITCH
Carrier
MSRP: $213.54Now: $165.01Carrier HH18HC069 DEFROST TEMP 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: $213.54Now: $165.01 -
Carrier HH18HC196 195F M/R SPST Rollout Switch
Carrier
MSRP: $61.33Now: $47.39195F M/R SPST Rollout Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $61.33Now: $47.39 -
Carrier HH18HC350 350F SPDT Rollout Switch
Carrier
MSRP: $117.00Now: $90.41350F SPDT Rollout Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $117.00Now: $90.41 -
Carrier HH18HH130 Limit Switch
Carrier
MSRP: $22.42Now: $16.99Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $22.42Now: $16.99 -
Carrier HH18HV100 90-100F Auto Limit Switch
Carrier
MSRP: $196.99Now: $149.2490-100F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $196.99Now: $149.24 -
Carrier HH18HV110 90-110F Auto Limit Switch
Carrier
MSRP: $140.43Now: $106.3990-110F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $140.43Now: $106.39 -
Carrier HH18HV120 90-120F Auto Limit Switch
Carrier
MSRP: $78.36Now: $60.5590-120F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $78.36Now: $60.55 -
Carrier HH18HV125 95-125F Auto Limit Switch
Carrier
MSRP: $84.64Now: $65.4195-125F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $84.64Now: $65.41 -
Carrier HH18HV131 130-30F Auto Limit Switch
Carrier
MSRP: $72.67Now: $56.15130-30F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $72.67Now: $56.15 -
Carrier HH18HV135 110-135F Auto Limit Switch
Carrier
MSRP: $154.87Now: $119.67110-135F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $154.87Now: $119.67 -
Carrier HH18HV140 110-140F Auto Limti Switch
Carrier
MSRP: $87.30Now: $67.46Carrier HH18HV140 110-140F Auto Limti Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum...MSRP: $87.30Now: $67.46 -
Carrier HH18HV145 115-145F Auto Limit Switch
Carrier
MSRP: $73.36Now: $55.58115-145F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $73.36Now: $55.58
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.