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OEM Carrier Pressure Switch CP48P448P405511CP for Model CP48P448

SKU: carrier-pressure-switch-cp48p448p405511c Brand: Carrier
$49.95

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

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OEM Carrier Pressure Switch CP48P448P405511CP for Model CP48P448

This OEM Carrier pressure switch (CP48P448P405511CP) is a critical safety control that verifies proper venting and combustion airflow before allowing the igniter and gas valve to fire. It monitors the draft created by the inducer motor and prevents the furnace from operating under unsafe blocked-vent or weak-draft conditions. Calibrated to the exact factory trip point, it is a direct-fit replacement for Carrier model CP48P448P405511CP and corrects no-heat, short-cycling, or pressure-switch fault codes caused by a stuck or out-of-spec switch. Installation is relatively easy for a handy owner or technician: shut off power and gas, disconnect the two spade terminals and the rubber draft hose, then mount the new switch and reconnect. Matching the OEM pressure rating is essential—an incorrect switch can mask venting problems and create a hazardous condition. Genuine OEM ensures the correct setpoint and reliable safety performance season after season. In stock and ships same-day on orders before 3PM CST. Get your furnace safely back online with help from NationalHVACParts.com.

Compatibility

This part is compatible with Carrier model CP48P448P405511CP.

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 Pressure Switch fit my Carrier Model CP48P448?
Yes. This is the factory-specified OEM pressure switch for the Carrier Model CP48P448. 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 pressure switch on my Carrier Model CP48P448?
Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.
My furnace shows a pressure switch error. What do I replace?
Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.
Is this pressure switch 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 pressure switch?
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.
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