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OEM Carrier Pressure Switch for Model LC350TM400675 Furnace
Carrier

OEM Carrier Pressure Switch for Model LC350TM400675 Furnace

SKU: carrier-pressure-switch-lc350tm400675 Brand: Carrier
$42.95

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 Model LC350TM400675 Furnace

This genuine OEM Carrier pressure switch monitors proper venting and draft on your Carrier LC350TM400675 furnace, confirming the inducer motor has established safe airflow before allowing ignition. A stuck, drifted, or failed pressure switch triggers lockouts, blinking error codes, and no-heat conditions even when everything else works. This OEM replacement is calibrated to the precise actuation point your furnace requires, ensuring reliable combustion safety that miscalibrated aftermarket switches cannot match. Built to factory standards, it restores correct sequencing and protects against dangerous incomplete venting. Installation is a moderate, accessible repair: shut off power, disconnect the wire terminals and the rubber hose, remove the mounting screws, and fit the new switch in about 20 minutes. Verify the hose is clear of condensate during the swap. Get dependable, safe furnace startups again with a switch matched exactly to the LC350TM400675. We stock these and ship same-day on orders before 3PM CST, so your heat is restored quickly. Choose authentic Carrier quality for safe, code-compliant operation.

Compatibility

This part is compatible with Carrier model LC350TM400675.

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 LC350TM400675 Furnace?
Yes. This is the factory-specified OEM pressure switch for the Carrier Model LC350TM400675 Furnace. 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 LC350TM400675 Furnace?
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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