HVAC Systems · Furnace Components
Integrated Furnace Control Board (IFC)
The main circuit board that sequences furnace operation — inducer, ignition, gas valve, and blower timing — while monitoring safety inputs and flashing diagnostic fault codes.
Common uses
Sequencing ignition and blower, safety monitoring, fault-code diagnostics
Common symptoms
- No response on call for heat
- Blower runs constantly
- Flashing fault code
Common repairs
- Board replacement
- Connector and wiring inspection
- Fault-code diagnosis
Related terms
Pro launch updates
Get notified when Pro launches, plus a monthly code-change digest. Email only — no account required.