Carrier gas heater sputters with access door open
I have a Carrier 48GS/48GX Combination Gas Heating/Electric Cooling unit.
It has direct spark ignition.
I replaced the blower fan a couple weeks ago and that is fine.
I have not had to use heat until last week. Once I finally turned unit on for heat, one burner would fire up but the other would not. The gas from the unlit burner was being blown into the house so it didn't smell too good to say the least.
I cleaned the flame sensors and both burners fired up!! All was great except when I closed the access door, I could hear the burners sputter and almost go out. I have left about an inch gap in the access door and the unit is heating the house and keeping a constant temp with no gas odor but I don't want to leave the access door like that.
Anyone know why the burners would sputter when the access door is closed?
Don't know if this matters but the burners do have some rust on them. The unit is about 6-7 years old.
Thanks in advance for any of your advice.
Last edited by mgmtrnr; 01-17-2008 at 05:30 PM.