903106 – CONTROL BOARD (NORTEK, GAS, AFTERMARKET, DIRECT, ICM2805A)

If your furnace won’t ignite, shows error codes, or the blower won’t start, the control board controls all of it. The 903106 is a factory control board for Nortek gas furnaces. The ICM2805A is the direct aftermarket replacement. Manages ignition sequencing, blower timing, and safety monitoring.

Specs: Gas furnace integrated control, OEM Nortek, ICM2805A aftermarket option

Replaces: 903106, 624631, ICM2805A

Fits: Nortek, Frigidaire, Gibson, and Tappan gas furnaces

Need help? See our Furnace Not Heating Guide.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 624631
• G6RA-096C-16B
• ICM2805A

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.