Carrier HVAC LH33WP003 Control Board, Direct Spark Ignition
$650.00
The Carrier LH33WP003 control board is the essential OEM replacement part designed to regulate the Direct Spark Ignition (DSI) system in heating and air conditioning units. Engineered under strict safety standards, it precisely manages the blower motor, inducer motor, and gas valve. It features a 100% safety lockout system in case of flame failure and an integrated LED indicator for rapid troubleshooting. This is the perfect solution to restore optimal performance and safety to your HVAC system.
Product Overview
Optimize and restore peak efficiency to your heating system with the Carrier LH33WP003 Direct Spark Ignition (DSI) control board. This factory-original (OEM) electronic board acts as the brain of your unit, safely coordinating the ignition cycle, gas flow, and ventilation in residential and light commercial package units. Equipped with an integrated microprocessor, it constantly monitors the system’s safety switches to prevent accidents and ensure consistent indoor comfort.
Compatible Models and Direct Replacements
This board is a genuine part manufactured for the Carrier corporate family. It directly replaces and upgrades the following part numbers:
- Carrier / Bryant / Payne / Heil / ICP: LH33WP003, LH33WP003A
- Authorized Aftermarket Alternative: If you are looking for a lower-cost, direct-fit alternative, it is fully compatible with the ICM Controls ICM291 control board.
Technical Specifications (Features & Specs)
- Ignition Type: Direct Spark Ignition (DSI).
- Input Voltage: 24 VAC, 60 Hz.
- Current Draw: 0.3 A (nominal) + gas valve current (400 mA maximum).
- Trial for Ignition Time: 5 + 2 seconds.
- Fuel Compatibility: Configurable for Natural Gas and Liquid Propane (LP).
- Integrated Safety: 100% Lockout safety shutdown if no flame is detected.
- Diagnostics: Built-in LED light with flash codes for common system faults.
Key Benefits for the User
- No-Guesswork Diagnostics: The LED indicator flashes specific error codes (such as pressure switch faults, limit switches, or flame loss), saving hours of expensive technician troubleshooting time.
- Certified Safety: The immediate automatic shutdown feature stops any potential gas leaks if the burner fails to light within the designated window.
- Drop-In Installation: Since it is a factory-original piece, the dimensions and terminals (R, W, G, etc.) match your old board perfectly. No complex wiring or mechanical modifications are required.
Be the first to review “Carrier HVAC LH33WP003 Control Board, Direct Spark Ignition”
Reviews
There are no reviews yet.