Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / OEM Carrier Contactor C4850C50ZN03090...

IMAGE COMING SOON

Carrier

OEM Carrier Contactor C4850C50ZN030900 for HVAC Condenser Unit

SKU: carrier-contactor-c4850c50zn030900 Brand: Carrier
$37.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

OEM Carrier Contactor C4850C50ZN030900 for HVAC Condenser Unit

Keep your Carrier air conditioner cycling reliably with this authentic OEM contactor, part C4850C50ZN030900. The contactor is the electromagnetic switch that delivers power to the compressor and condenser fan motor on each cooling demand from the thermostat. As a high-wear component, it frequently develops pitted or welded contacts, causing a humming unit that fails to start, intermittent cooling, or short cycling. This OEM replacement is engineered to the precise contact rating, coil voltage, and pole configuration of Carrier model C4850C50ZN030900, ensuring it drops in without compatibility issues. The repair rates as a moderate DIY job: turn off power at the disconnect, take a photo of the original connections, relocate each wire to the identical terminal on the new contactor, and fasten it to the mounting bracket. A nut driver and multimeter are usually all that's required. Genuine OEM parts maintain the correct current capacity and durability missing from generic universal contactors, helping prevent premature failure. We stock this part and ship it same-day for orders placed before 3PM CST, minimizing your cooling system downtime.

Compatibility

This part is compatible with Carrier model C4850C50ZN030900.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 $75
  • 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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier HVAC Condenser Unit?
Yes. This is the factory-specified OEM contactor for the Carrier HVAC Condenser Unit. 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 HVAC Condenser Unit?
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.
Home Shop Search Account Cart