Honeywell 50e47-843 Hot Surface Ignition Module

Product Description

The HONEYWELL 50e47-843 is a universal hot surface ignition (HSI) module designed to control the ignition sequence in gas-fired heating systems. It monitors and drives the hot surface igniter, manages the trial-for-ignition period, and provides lockout protection on ignition failure. Licensed HVAC technicians install this module during service calls when the original ignition control has failed or when a universal replacement is needed. The 50e47-843 is noted as a direct replacement for part number CC557000, making it a practical cross-reference option for technicians working from legacy part numbers.

This ignition module is suited for residential and light commercial gas furnaces and heating appliances that use hot surface ignition technology. It fits into the broader category of universal ignition controls, meaning it is designed to serve a range of equipment rather than a single OEM platform. Technicians carrying this module as a truck stock item can address a wide variety of hot surface ignition failures across common gas furnace installations.

Key Features

• Universal HSI control compatible with a broad range of gas-fired heating equipment
• Manages the complete ignition sequence including igniter warm-up, gas valve activation, and flame sensing
• Provides safety lockout on failed ignition attempts to prevent unburned gas accumulation
• Serves as a direct replacement for CC557000, simplifying cross-reference procurement
• Designed for straightforward field installation by licensed HVAC technicians

Compatibility

The 50e47-843 is specified as a universal hot surface ignition module and a direct replacement for part number CC557000. No additional compatible model numbers or system families were provided in the available product data.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes and the equipment manufacturer's service documentation. Disconnect power to the furnace and shut off the gas supply before removing the existing ignition module. Verify that the replacement module's operating voltage and igniter type match the equipment specifications before energizing the system. After installation, perform a complete ignition cycle test and confirm proper flame sensing and lockout behavior before returning the unit to service.

Technical Specifications

• Module Type: Universal Hot Surface Ignition (HSI)
• Replaces Part Number: CC557000

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: 50e47-843