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Carrier LH33WP002 Ignition Control Circuit Board

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1  Review Add Your Review
Special Price $372.45 Regular Price $732.95
In stock
SKU
LH33WP002
The Carrier LH33WP002 Ignition Control Circuit Board is an electronic control component used for electronic ignition sequencing and safety monitoring of heating HVAC systems. It operates by using integrated circuitry, which interprets the signals transmitted by flame sensors, pressure switches, and thermostat inputs and controls the ignition parts and gas valve controls when running in gas-furnace HVAC systems. It is installed in the equipment control compartment, to which wiring harnesses are attached at the terminals. It enables the ignition timing and the presence of the flame controls the work of the burner, and this contributes to stable combustion.
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HVAC Controls & Electrical, Control Boards & Modules
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Product Questions (2)
Customer Questions
What maintenance is required for the Carrier LH33WP002 Ignition Control Circuit Board?

Inspect the circuit board regularly for dust, debris, or corrosion. Ensure all wiring connections are secure and check for signs of overheating. Maintaining a clean, stable environment helps prevent ignition failures and ensures safe, accurate furnace operation.

What are common issues with the Carrier LH33WP002 Ignition Control Circuit Board?

  • Failure to ignite.
  • Erratic or intermittent ignition.
  • Burnt or damaged connectors.
  • Error codes indicating ignition faults.

Installation Steps

Step 1: Turn off power to the HVAC system at the breaker to ensure safety.

Step 2: Remove the access panel on the furnace to locate the existing ignition control board.

Step 3: Disconnect all wiring from the old board, noting connections carefully.

Step 4: Remove the mounting screws and take out the old board.

Step 5: Position the new board, secure with screws, and reconnect all wires.

Step 6: Replace the access panel and restore power, then test the system for proper ignition and operation