[Wayne 962]

We've left the house. I've got an HVAC guy coming to look at it on Thursday. It's a house in the mountains, so my tools and equipment are not the same that I have here in Los Angeles. I basically have a large carry-around toolbox with some hardware-store Stanley tools. I do have a manometer here at home (used for diagnosing my pool heater problem - that's another story - six visits from the "techs" couldn't fix it - I had to do it myself), but I didn't have that there.

The fact that the heater still gave an error code with the intake disconnected from the convoluted intake duct, leads me to believe that either the motor is getting a bit old, or indeed, perhaps the system wasn't setup property from day one.