Rcd lh33zg001 Hot Surface Ignitor Gas Furnace

Product Description

The RCD lh33zg001 is a hot surface ignitor designed as a direct replacement for gas furnace ignition systems. The ignitor generates the high surface temperature needed to light the burner, replacing the function of a standing pilot and eliminating the unreliability associated with older ignition methods. It fits into the burner assembly and is connected to the furnace control board, which energizes the ignitor during each call for heat. Licensed HVAC technicians typically handle this replacement during a no-heat service call. Key physical specs include a length of 5.2 inches, a width of 2.8 inches, and a height of 1.8 inches, with a total weight of 0.1 pounds.

This ignitor is suited for residential gas furnace applications where a hot surface ignition system is already in place. It is confirmed to fit the following models: 59SC5A060S171114, 925SA42060E17A-B, and 58CVX110-13120. These units represent a range of residential forced-air gas furnaces that rely on hot surface ignition for reliable burner startup. Installers working on these models can use this part as a direct OEM-style replacement without modification to the existing mounting bracket or wiring harness.

Key Features

• OEM-replacement hot surface ignitor for residential gas furnace applications
• Compact form factor: 5.2 inches long, 2.8 inches wide, 1.8 inches tall
• Lightweight at 0.1 pounds, minimizing stress on the mounting bracket
• Confirmed fitment for multiple residential gas furnace model numbers
• Eliminates standing pilot reliability issues inherent to older ignition systems

Compatibility

Confirmed compatible models include 59SC5A060S171114, 925SA42060E17A-B, and 58CVX110-13120. Verify the existing ignitor part number and furnace model before ordering to confirm fitment.

Installation Notes

A licensed HVAC technician should perform this replacement. Before servicing, shut off power to the furnace at the disconnect switch or breaker and turn the gas supply valve to the off position. Hot surface ignitors are fragile silicon nitride or silicon carbide components — avoid touching the ignitor element with bare hands, as skin oils can cause premature failure. Refer to the furnace manufacturer's wiring diagram and follow applicable local mechanical codes when reconnecting the ignitor leads.

Technical Specifications

• Length: 5.2 inches
• Width: 2.8 inches
• Height: 1.8 inches
• Weight: 0.1 pounds

Standard Information

• Brand: RCD
• Manufacturer Part Number: lh33zg001