Have a Dometic DFMD30141 and it will fire, but after that it will not re-ignite and it gives me a airflow/limit switch fault. If I reset it on the switch on the furnace it will re-ignite. Sail switch is clean and my RV not has 4000 miles on it. The other thing is it appears to be doing it less often, meaning when I first tried it before our last camping trip it wouldnít re-ignite unless I hit the off/reset switch. Now it seems to re-ignite a few times but it eventually gives the same error code. Any ideas? I did buy a new control board and igniter (figured having spare parts couldnít hurt just in case) Thanks in advance.