OEM Carrier Pressure Switch HK06WC061 for Model LC3:50LC400677

This is the factory-specified OEM pressure switch (part number HK06WC061) for the Carrier LC3:50LC400677 packaged unit. The pressure switch is a critical safety component that monitors the inducer blower's negative pressure to confirm proper draft before allowing the ignition sequence to proceed. When this switch fails — whether due to a ruptured diaphragm, blocked port, or faulty electrical contact — the furnace or packaged unit will enter a safety lockout, typically displaying a fault code and refusing to advance past the inducer stage. Replacing with the correct OEM part ensures your W.C. (water column) rating is factory-matched and your system resumes normal operation.

• Specs: OEM part number HK06WC061 | Factory-calibrated W.C. (water column) set point | Single-port or dual-port configuration per factory design | Direct plug-in harness connector for LC3:50LC400677
• OEM vs Generic: OEM pressure switches are calibrated to the exact W.C. rating required by your unit's inducer and heat exchanger design. Generic substitutes often carry wider tolerances, risking nuisance lockouts or — more dangerously — failure to detect a true draft problem.
• Install difficulty: 2/5 — Disconnect power at the breaker before beginning. Tools needed: Phillips screwdriver, 1/4" nut driver, multimeter (to verify continuity across switch terminals), and a manometer if confirming W.C. pressure. Document hose routing before disconnecting the pressure tube.
• Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our stocked warehouse.

Compatibility: Designed specifically for the Carrier LC3:50LC400677 packaged unit. Always verify the OEM part number HK06WC061 against your unit's data plate or existing switch label before ordering. If you have any questions about fitment, our HVAC parts specialists will confirm compatibility before your order ships — same day.