Lynx 33556 Hot Surface Igniter 4 Inch All Sear

Product Description

The LYNX 33556 is a 4-inch hot surface igniter designed as a replacement ignition component for gas-fired heating equipment. Hot surface igniters provide reliable spark-free ignition by heating a resistive element to ignition temperature when the control board calls for heat. The 33556 is a revised version of the All Sear igniter series, indicating an updated design intended to address durability or fitment improvements over its predecessor. Licensed HVAC technicians performing furnace or heating appliance service are the primary installers of this component.

This igniter is suited for residential and light commercial gas heating applications where the All Sear 4-inch hot surface igniter form factor is specified. The 4-inch element length is a common dimension in many gas furnace ignition assemblies. The revised designation suggests this part supersedes an earlier version and may be a direct drop-in replacement for systems that originally used the previous All Sear igniter configuration.

Key Features

• 4-inch hot surface igniter element length matches All Sear series fitment requirements
• Revised design for improved durability or compatibility over prior version
• Hot surface ignition eliminates the need for a standing pilot flame
• Designed as an OEM-style replacement for gas heating equipment ignition systems

Compatibility

Designed as an OEM-style replacement igniter for gas furnaces and heating appliances specifying a 4-inch All Sear hot surface igniter. Consult equipment documentation to confirm fitment before installation.

Installation Notes

Hot surface igniters must be installed by a licensed HVAC technician. Disconnect power and shut off the gas supply to the appliance before servicing any ignition components. Handle the igniter element carefully and avoid contact with bare skin, as oils from skin contact can cause premature element failure. Verify proper electrical connection and element positioning per the appliance service manual before restoring power.