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Carrier

OEM Carrier Pressure Switch PS-LC350 for Model LC350TM400570

SKU: carrier-pressure-switch-lc350tm400570 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 LC350TM400570

This OEM Carrier pressure switch is the genuine replacement for the LC350TM400570 furnace, verifying proper draft inducer airflow and venting before allowing the burners to ignite. The switch acts as a critical safety device, confirming exhaust gases are vented correctly; when it fails or sticks open, the furnace locks out and won't fire, leaving you without heat. This factory-calibrated switch trips at the precise pressure your unit demands, ensuring safe operation and guarding against hazardous venting conditions. Manufactured to Carrier specifications, it matches the original port layout and mounting for an exact fit on the LC350TM400570. Installation is straightforward, generally taking 15-25 minutes with basic hand tools and careful hose routing. Always disconnect power before servicing. A genuine OEM switch delivers accurate calibration that generic replacements frequently miss. Orders placed before 3PM CST ship same-day to restore your heat quickly. Depend on NationalHVACParts.com for authentic Carrier components and fast, reliable shipping.

Compatibility

This part is compatible with Carrier model LC350TM400570.

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 LC350TM400570?
Yes. This is the factory-specified OEM pressure switch for the Carrier Model LC350TM400570. 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 LC350TM400570?
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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