If you have a failing Lennox SureLight control board, the ICM2813 lets you get the furnace running again without chasing discontinued OEM parts. It’s built as a form, fit, and functional replacement for many Lennox and White-Rodgers boards, so in most cases you can move wires over, mount the new board, and bring the furnace back online with minimal changes.
Key Features & Benefits
Handles Full Ignition and Blower Sequence
Controls the gas valve, inducer motor, circulating blower, and hot surface ignitor, coordinating the entire start-up and run cycle.
Safety Monitoring
Continuously checks pressure and limit switches including high limit and rollout circuits.
LED Diagnostics
On-board diagnostic LEDs show status and fault codes to help you quickly narrow down issues like pressure switch problems, ignition failures, or limit trips.
Microprocessor-Based Precision
Uses a microprocessor to control timing and safety checks with high accuracy, helping the furnace light, run, and shut down more consistently than older mechanical-style controls.
Designed for Harsh Furnace Environments
Rated for -40°F to 176°F and 5–95% non-condensing humidity, built to handle furnace cabinet conditions over the long term.
OEM Blower Timing
Provides factory-style blower on/off delays for heat and cool, so airflow is familiar to homeowners and helps protect the heat exchanger.
Key Specs
- Input Voltage: 18–30 VAC, 50/60 Hz
- Ignitor Output: 2.0 A @ 80 VAC (hot surface ignitor, resistive)
- Inducer Relay: 2.2 FLA / 3.5 LRA @ 120 VAC
- Blower Relay: Up to 14.5 FLA / 25.0 LRA @ 120 VAC (heat/cool/fan outputs)
- Gas Valve Relay: 1.5 A @ 25 VAC, 50/60 Hz
- Operating Temperature: -40°F to 176°F (-40°C to 80°C)
- Humidity: 5–95% RH, non-condensing
