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OEM Carrier Pressure Switch PS-LC350 for Model LC350TM400571
Carrier

OEM Carrier Pressure Switch PS-LC350 for Model LC350TM400571

SKU: carrier-pressure-switch-lc350tm400571 Brand: Carrier
$34.95

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 PS-LC350 for Model LC350TM400571

This OEM Carrier pressure switch is the genuine replacement for the LC350TM400571 furnace, monitoring proper venting and draft inducer airflow to allow safe ignition. The switch confirms that exhaust gases are being vented correctly before the burners light; when it fails or sticks, the furnace locks out and refuses to fire, leaving you without heat. This factory-calibrated switch trips at the exact pressure threshold your unit requires, ensuring safe, reliable operation and protecting against dangerous venting conditions. Built to Carrier specifications, it matches the original's port configuration and mounting for a precise fit on the LC350TM400571. Installation is straightforward, typically taking 15-25 minutes with basic hand tools and careful attention to hose routing. Always disconnect power before servicing. Choosing a genuine OEM switch ensures accurate calibration that generic parts often can't match. Orders placed before 3PM CST ship same-day to restore your heat fast. Rely on NationalHVACParts.com for authentic Carrier components and prompt, dependable shipping.

Compatibility

This part is compatible with Carrier model LC350TM400571.

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 LC350TM400571?
Yes. This is the factory-specified OEM pressure switch for the Carrier Model LC350TM400571. 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 LC350TM400571?
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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