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OEM Carrier Pressure Switch for Furnace Model LC350LC400675
Carrier

OEM Carrier Pressure Switch for Furnace Model LC350LC400675

SKU: carrier-pressure-switch-lc350lc400675 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 for Furnace Model LC350LC400675

Protect your furnace and family with this OEM Carrier pressure switch, designed for the LC350LC400675 gas furnace. The pressure switch is a critical safety device that confirms the draft inducer is moving combustion gases properly before allowing ignition. If venting is blocked or the inducer is weak, the switch prevents the furnace from firing, guarding against dangerous flue-gas buildup. A failed or stuck switch is a frequent cause of furnaces that won't start or lock out mid-cycle. This genuine Carrier switch is calibrated to the exact trip pressure your model requires, ensuring accurate, reliable safety operation. Installation is moderate difficulty, usually 20-30 minutes—disconnect power, transfer the wiring and the small vacuum tubing to the new switch, and confirm a secure fit. Genuine OEM calibration matters here: a mismatched generic switch can trip incorrectly or fail to protect. Order before 3PM CST for same-day shipping. Rely on NationalHVACParts.com for authentic Carrier safety components and fast, dependable service.

Compatibility

This part is compatible with Carrier model LC350LC400675.

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 LC350LC400675?
Yes. This is the factory-specified OEM pressure switch for the Carrier Furnace Model LC350LC400675. 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 LC350LC400675?
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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