What amp contactor do I need for my Carrier system?

The correct replacement for Carrier model C48A202751 — Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Carrier equipment which lists the model number C48A202751 — Ships Today.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

Is this contactor compatible with Bryant or Payne systems too?

Many Carrier parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C48A202751 — Ships Today

Name: OEM Carrier Contactor 2-Pole 24V Coil for C48A202751 — Ships Today
Brand: Carrier
SKU: CARRIE-C48A202751-CONTACTOR-HN53CB115
Price: 40.80 USD
Availability: InStock

SKU: CARRIE-C48A202751-CONTACTOR-HN53CB115 Brand: Carrier

✓ Guaranteed to fit — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

OEM Carrier 2-Pole Contactor for Model C48A202751 Packaged Unit

This is the factory-specified OEM replacement contactor for the Carrier C48A202751 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat — when the call for cooling arrives, the contactor closes and delivers line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioning system that simply won't turn on, hums without starting, or trips the breaker repeatedly. Pitted or welded contacts and a weak coil are the most frequent failure modes.

Specs: 2-pole configuration | 24V AC coil voltage | Heavy-duty contact rating | Replaces OEM part numbers HN53CB115 and HN53HF122 — direct drop-in fit, no modifications required
OEM vs Generic: OEM contactors from Carrier use silver-alloy contacts rated for thousands of switching cycles. Aftermarket units often use lower-grade contacts that pit faster under load, leading to premature failure and potential compressor damage.
Install Difficulty: 2/5 — Always disconnect power at the breaker and capacitor before touching any wiring. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor to ensure correct terminal reassignment.
Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our climate-controlled HVAC parts warehouse.

Compatibility: Engineered specifically for the Carrier C48A202751 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Confirm coil voltage and pole count on your unit's data plate or wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists verify fitment at no charge — reach out before you buy.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $99
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Carrier Contactor 2-Pole 24V...

$40.80

Frequently Asked Questions

Does this Contactor fit my Carrier C48A202751 — Ships Today?

Yes. This is the factory-specified OEM contactor for the Carrier C48A202751 — Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the contactor on my Carrier C48A202751 — Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.

My AC clicks but the compressor won’t turn on. What’s wrong?

Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.

Is this contactor compatible with Bryant or Payne too?

Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Carrier contactor?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

Menu

OEM Carrier Contactor 2-Pole 24V Coil for C48A202751 — Ships Today

OEM Carrier 2-Pole Contactor for Model C48A202751 Packaged Unit

Shipping Information

Return Policy

Frequently Asked Questions