[Wayne 962]

cabmando - I'll get you that info soon, heater is apart and it's getting cold so I need to work semi-quickly.

So, I disconnected the return line - what a convoluted POS setup this is. BUT - disconnecting the line did not make a difference! I ran the heater with the return line disconnected, *and* with the filter removed (just for 20 seconds during the test mode), and it still came back with the 44 code. By the way, it shut down last night for it's "3 hour reset cycle" on its own.

So, with the return disconnected and the filter out - it still gives me the 44 error! Running the motor with the cover open (so it gets air from the room instead of from the return circuit) resulted in no errors. So, is there an obstruction in the return duct all of a sudden? Is the line just so long it can't get air? I thought for sure removing it from the screwed up intake vent (semi-crushed by the beam ) would help, but it did not! Right now, I'm headed back down there, and I think I'm going to chop about 20' off of the return line and see what happens. I have to be careful not to screw up the entire setup. We do have another FAU in the house, and we do have a wood burning stove, but I wouldn't hear the end of it if the unit was down and inoperable for several days...

-Wayne