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OEM Carrier Pressure Switch for Furnace Model LC350LC400465
Carrier

OEM Carrier Pressure Switch for Furnace Model LC350LC400465

SKU: carrier-pressure-switch-lc3-50lc400465 Brand: Carrier
$54.95

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 for Furnace Model LC350LC400465

This OEM Carrier pressure switch is an essential safety control for furnace model LC350LC400465, verifying proper draft and venting before the ignition sequence begins. It monitors the negative pressure created by the inducer motor and will prevent the burners from firing if airflow is blocked or insufficient—protecting your home from unsafe combustion gas buildup. When this switch fails, the furnace commonly locks out, fails to start, or short-cycles during the pre-ignition check. Built to genuine Carrier specifications, this replacement provides the correct trip-point pressure rating and exact hose-port configuration for guaranteed fitment and reliable operation. Installation is a moderate DIY task taking 20 to 30 minutes: disconnect power, note and transfer the pressure hose connections, move the wiring, and mount the new switch. Confirm the breaker is off before beginning any service. Get your heat back fast and restore the safety logic your furnace depends on. In stock now and shipping same-day on every order placed before 3PM CST.

Compatibility

This part is compatible with Carrier model LC350LC400465.

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 Furnace Model LC350LC400465?
Yes. This is the factory-specified OEM pressure switch for the Carrier Furnace Model LC350LC400465. 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 Furnace Model LC350LC400465?
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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