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OEM Carrier Pressure Switch for Furnace Model LC350HE400803 In Stock
Carrier

OEM Carrier Pressure Switch for Furnace Model LC350HE400803 In Stock

SKU: carrier-pressure-switch-lc350he400803 Brand: Carrier
$47.95

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 LC350HE400803 In Stock

Protect your furnace and household with this genuine OEM Carrier pressure switch for furnace model LC350HE400803. The pressure switch is a vital safety device that verifies proper venting and inducer draft before permitting the igniter and gas valve to fire. If it detects a blocked vent, weak draft, or condensate backup, it stops ignition to prevent dangerous flue gas spillage into the home. A stuck or failed switch causes lockouts, error codes, and no-heat conditions. This factory-spec replacement matches the original pressure setpoint, hose port, and electrical terminals for a true direct fit. Installation is a moderate DIY task of roughly 15-20 minutes, transferring the rubber hose and two wires after cutting power. Using the correct OEM-rated switch is essential, since an incorrect setpoint defeats a key safety function. Restore safe, reliable furnace operation with a part built to factory standards rather than an uncertain aftermarket substitute. In stock and ready to ship. Orders placed before 3PM CST ship the same business day.

Compatibility

This part is compatible with Carrier model LC350HE400803.

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 LC350HE400803 In Stock?
Yes. This is the factory-specified OEM pressure switch for the Carrier Furnace Model LC350HE400803 In Stock. 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 LC350HE400803 In Stock?
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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