suburban furnace tripping on high temp

I did replace the switch ... but it could be a second bad one.

I ordered two to I can change that out this morning.

I am thinking of trying to open up the port next on the far side of the unit (second closest to the high heat switch).

Maybe this will give enough air flow.

maybe a floor register right off the unit and try moving the pipe that goes across to another port.

I worked on it till 2 last night ... running out to look at it again ... trying to beat the snow and 9 deg temps (way tooooo cold here in VT) heading our way tomorrow.

Thanks ... Mike