Well my furnace quit Friday night. The igniter was not working. I was able to purchase a new one Saturday for 40 bucks. I installed it and it worked. Cold in house Saturday night it was not working. I got out the tester and it was getting about 5 volts which is not enough so I have a circuit board ordered because everything is closed Sunday. I should arrive Tuesday or Wednesday for 80 bucks. Good thing having a wood burner.