Had the furnace since new, so I know that no one has switched their locations... According to the wiring diagram and the position of the wires they appear to be in the correct positions. Will check about shield later today... Didn't find a extra part or anything in the bottom of the combustion chamb...

Aloha- I'm new here but I looks like the place for good info .... I have a Intertherm mod # MMHA-070AAHR-01 ser # MMH9401-05872 When it gets real cold out the furnace blower fan starts up for a second or two and then quits. The flame never goes out, but the blower fan just starts and restarts. The c...