it will wait five minutes to clear any unburned gas before attempting the next cycle

Smith 100301928 Straight Spark Igniter Assembly is a high-precision OEM component engineered for high-efficiency commercial and residential heating systems

the ZG-DC2 is required

or the board failing to send 24V to the gas valve despite a closed pressure switch

York 2LA04702412 Ambient Kit 322838-753 it will wait five minutesThe York 2LA04702412 Low Ambient Kit is a vital upgrade for technicians maintaining cooling performance when outdoor temperatures drop below 50F. This S1 2LA04702412 low ambient control is engineered for York HVAC systems, ensuring the unit operates safely down to 0F. By monitoring liquid line pressure and head pressure, the kit regulates the condenser fan motor speed to maintain optimal refrigerant flow. This prevents freezing of the indoor coil and