Good job explaining the start up sequence and doing the job yourself you probably saved hundreds to a thousand dollars. A lot of guys would tell you That you need a new furnace
The blower motor is not supposed to come on immediately when you start the heater. All the other steps come first, and when the gas jets start firing, the blower comes on LAST, after a delay to heat up. If it came on first, it would blow cold air for 2-3 minutes while it was waiting to heat up, with no guarantee that everything is even working. The burners may never come on, as you discovered.
I was just going to make a similar comment. I've been searching the Internet for a solution to my Code31 problem but I did find one good video that walked through all of the steps 1/ Induce Motor 2/ Pressure Switch 3/ Heating Element 4/ Gas flow 5/ Flame Sensor detects flame 6/ Blower Motor
Good job explaining the start up sequence and doing the job yourself you probably saved hundreds to a thousand dollars. A lot of guys would tell you That you need a new furnace
Good Video - mine: that pressure-switch, is a motor-switch - turning that motor by-hand, un-stuck the motor - then everything worked…. :) :D
Nice thanks man!
The blower motor is not supposed to come on immediately when you start the heater. All the other steps come first, and when the gas jets start firing, the blower comes on LAST, after a delay to heat up. If it came on first, it would blow cold air for 2-3 minutes while it was waiting to heat up, with no guarantee that everything is even working. The burners may never come on, as you discovered.
I was just going to make a similar comment. I've been searching the Internet for a solution to my Code31 problem but I did find one good video that walked through all of the steps 1/ Induce Motor 2/ Pressure Switch 3/ Heating Element 4/ Gas flow 5/ Flame Sensor detects flame 6/ Blower Motor
That furnace likely has a cracked heat exchanger. You should have it inspected by a professional.
no sock slugger