Carrier
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Carrier HH18HV155 Temperature Switch, 155 Degree
Carrier
MSRP: $72.62Now: $55.01Temperature Switch, 155 Degree FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $72.62Now: $55.01 -
Carrier HH18HV160 157-160F Auto Limit Switch
Carrier
MSRP: $82.68Now: $63.89157-160F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $82.68Now: $63.89 -
Carrier HH18HV170 142-170F Auto Limit Switch
Carrier
MSRP: $92.32Now: $71.34142-170F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $92.32Now: $71.34 -
Carrier HH18HV185 155-185F Auto Limit Switch
Carrier
MSRP: $69.73Now: $52.83155-185F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $69.73Now: $52.83 -
Carrier HH18HZ195 195 degrees F Open, 115 degrees F Close, Automatic Reset, SPST, Rollout Switch
Carrier
MSRP: $35.66Now: $27.55Carrier® Brand ROLLOUT Switch Open 195 Close 115; All parts backed by a one year manufacturer warranty. FurnacePartSource.com Commitment Item Typically Ships Within the Same Business...MSRP: $35.66Now: $27.55 -
Carrier HH18JA061 Defrost Thermostat
Carrier
MSRP: $53.01Now: $40.16Defrost Thermostat FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $53.01Now: $40.16 -
Carrier HH18JA066 Defrost Thermostat
Carrier
MSRP: $36.12Now: $27.36Defrost Thermostat FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $36.12Now: $27.36 -
Carrier HH18SA100 SW TEMP ACT
Carrier
MSRP: $31.81Now: $24.58Carrier HH18SA100 SW TEMP ACT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...MSRP: $31.81Now: $24.58 -
Carrier HH18SA101 175F-15F Limit Switch
Carrier
MSRP: $20.23Now: $15.63Carrier HH18SA101 175F-15F 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: $20.23Now: $15.63 -
Carrier HH18SA261 Defrost Temperature Switch
Carrier
MSRP: $32.31Now: $24.96Defrost Temperature Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $32.31Now: $24.96 -
Carrier HH19ZA125 L125-35F LIMIT SWITCH
Carrier
MSRP: $31.17Now: $24.08Carrier HH19ZA125 L125-35F 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: $31.17Now: $24.08 -
Carrier HH19ZA135 L135-40F Limit Switch
Carrier
MSRP: $31.89Now: $24.65L135-40F Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $31.89Now: $24.65 -
Carrier HH19ZA140 100-140F Auto Limit Switch
Carrier
MSRP: $47.72Now: $36.87100-140F Auto Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $47.72Now: $36.87 -
Carrier HH19ZA145 Limit Switch Opn145 Cls105
Carrier
MSRP: $71.03Now: $54.89Limit Switch Opn145 Cls105 FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $71.03Now: $54.89 -
Carrier HH19ZA155 Limit Switch
Carrier
MSRP: $66.94Now: $51.73Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $66.94Now: $51.73 -
Carrier HH19ZA156 Limit Switch
Carrier
MSRP: $45.61Now: $34.55Limit Switch FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...MSRP: $45.61Now: $34.55 -
Carrier HH19ZA170 Temperature Switch Primary Limit
Carrier
MSRP: $53.92Now: $40.85Temperature Switch Primary Limit FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order RequirementsMSRP: $53.92Now: $40.85 -
Carrier HH19ZA174 L170-40F LIMIT SWITCH
Carrier
MSRP: $46.20Now: $35.70Carrier HH19ZA174 L170-40F 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: $46.20Now: $35.70 -
Carrier HH19ZA175 Limit Switch Opn175 Cls135
Carrier
MSRP: $97.83Now: $75.59Limit Switch Opn175 Cls135 FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...MSRP: $97.83Now: $75.59 -
Carrier HH19ZA180 Limit Switch
Carrier
MSRP: $5.38Now: $4.08Carrier HH19ZA180 Limit Switch 180F-OPN 140F-CLS LIMIT SWITCH Item is Non-Cancelable / Non-Returnable FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...MSRP: $5.38Now: $4.08
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.