Shut off power to system and inspected the ignition control board. Found some soldering on the back of the board was broken. The broken soldering is on the connection points for a moles plug that wires to the gas valve, pressure switch, high limit switch, and flame rollout switch. Ordered and picked up a new control board from Lennox. Removed the original board and installed the new one. Cycled the system on and it ran the heat cycle, no error codes showing. The system completed the heat cycle and reached the set temp on the thermostat. Cycled the system on again to verify proper operation. System is operating and heating at this time. Repairs covered under warranty.