When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network
Carrier 48DD Ignition Control Board
The main ignition control board regulates the main gas intake valve, the igniter and other important devices. The ignition control board was always an important safety device that is now usually a major component of the main board instead of a separate board.
Major clues the ignition board should need replacing
- The on-signal from the primary thermostat does not reach the main control board
- Every other potential issue in the HVAC system checks out good
- Heating and cooling system can not initiate at all
This site contains affiliate links for which I may be compensated
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated