Lp company came and checked regulator it checked out ok but switched it out anyways since it was an intermittent problem to see if it would fix it. It did not fix it. They had their gauge on it and it was set at proper setting I believe it was 11. Can you tell me which way to go next would it be the...

I have a G9T 10020 coleman evcon in my house and`sometimes it does not light by itself it will cycle the three times then the blower motor will come on and blow cool air. I have changed the flame sensor and the igniter. Last night I happened to be down next to it when the furnace was not lighting an...