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OEM Carrier Pressure Switch for Furnace Model LC350HE400811
Carrier

OEM Carrier Pressure Switch for Furnace Model LC350HE400811

SKU: carrier-pressure-switch-lc3-50he400811 Brand: Carrier
$48.95

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 LC350HE400811

This OEM Carrier pressure switch safeguards your furnace by confirming correct venting and draft before each ignition attempt. A stuck-open or failed switch commonly causes a no-heat condition, a pressure switch error code, or an inducer that runs while the burners never fire. Built to the exact specification of Carrier model LC350HE400811, this switch detects the proper negative pressure from the draft inducer motor and closes its contacts to safely allow ignition. Replacement is a manageable DIY job of roughly 20 to 30 minutes: shut off power, note and remove the wiring and hose, install the new switch, and reconnect everything. Genuine OEM construction ensures the precise pressure setpoint your model demands, avoiding the false trips and unsafe cycling that universal switches often introduce. Restore safe, reliable heating and peace of mind. Orders placed before 3PM CST ship same-day for quick turnaround. Choose authentic Carrier parts for dependable safety and durability that lasts.

Compatibility

This part is compatible with Carrier model LC3:50HE400811——.

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 LC350HE400811?
Yes. This is the factory-specified OEM pressure switch for the Carrier Furnace Model LC350HE400811. 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 LC350HE400811?
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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