Upon inspection, it was determined that the furnace's igniter was malfunctioning, preventing the furnace from starting properly. To address this issue, I replaced the faulty igniter with a new one, ensuring optimal performance and efficiency. The new igniter was installed according to manufacturer specifications, and the furnace was tested to confirm proper operation. This replacement not only resolved the immediate problem but also extended the lifespan of the furnace. The customer was informed about the successful completion of the task and provided with relevant maintenance tips to keep the furnace running smoothly.