OEM Carrier Ignition Control Board LH33WP007 for Model PY3GNA042090NA

This OEM ignition control board (IGC board) is the factory-specified replacement for the Carrier PY3GNA042090NA packaged gas/electric unit. The integrated furnace control board orchestrates every stage of the heating sequence — from inducer motor pre-purge and hot surface ignition to gas valve activation, flame sensing, and blower motor management. When the board fails, you may experience a hard lockout with no ignition attempt, intermittent no-heat calls, erratic blower behavior, or fault codes indicating a control failure. Replacing the board with a genuine OEM part ensures the unit operates exactly as factory-designed, with no compatibility guesswork.

• Specs: 24V | 60 Hz | IGC (Integrated Gas Control) Board | OEM Part # LH33WP007 | Cross-reference: 1068-15, 1068-83-119A
• OEM vs Generic: This is a genuine Carrier OEM board, manufactured to exact factory tolerances. Aftermarket boards may not correctly replicate timing sequences for ignition, flame sensing, or fault diagnostics, risking nuisance lockouts and voided equipment warranties.
• Install difficulty: 3/5 — Shut off power and gas before servicing. Photo-document all wiring harness connections before removal. Tools needed: 1/4" nut driver, magnetic screwdriver, multimeter. Verify fault codes via LED diagnostics before and after replacement. Professional installation recommended.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier PY3GNA042090NA packaged units. Verify your existing board's part number against LH33WP007 before ordering. Cross-references include 1068-15 and 1068-83-119A. Have questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us today.