ICM-ICM292A – Direct Spark Ignition (DSI) Furnace Control Board
The ICM-ICM292A is a microprocessor-based DSI ignition control that manages the complete furnace ignition sequence with reliable flame sensing and built-in safety lockout. It streamlines service with clear LED fault codes and controls key outputs including the inducer, blower, spark, gas valve, and optional humidifier. Designed as a cost-effective replacement in systems using direct spark ignition, it supports natural gas or LP applications.
Key Features
- Direct Spark Ignition control with LED diagnostics for fast troubleshooting
- Microprocessor timing, flame rectification, and safety lockout logic
- Controls inducer motor, indoor blower, spark ignitor, gas valve, and humidifier output
- Works with natural gas or propane (LP) systems
- Rugged design for residential and light commercial furnaces
- Control voltage: 24 VAC, 60 Hz
- Line inputs and relay outputs for inducer, blower, and gas valve
- Integrated pre-purge, trial-for-ignition, retry, and post-purge sequences
- Lockout and self-reset logic to protect the system
- LED status/fault codes for clear diagnostics
- Functional replacement for select systems using DSI controls
- Common cross-reference: 62-24140-04 (verify by furnace model, wiring, and timing before ordering)
- ICM-ICM292A control board
- Basic installation/diagnostic instructions