HVAC Questions? Ask an HVAC Expert for Answers ASAP
Tell me exactly what happens on call for heat
Does the vent motor come on?
are you comfortable doing a bit of hands on troubleshooting
What thermostat do you have?
lux 1000 electronic programable
let me get a manual. be right back
Do you know if it is the TX100?
the case says Lux 1000
Looks like all the lux digitals wire same. Ok.Can you remove the wires from the thermostat for me?
all of them?
you can remoe just red, green and white if you want
how many do you have?
red, black, green and white
is black connected to Y?
yes, can I remove these safely without turning off the power?
Lets turn off power.only 24 volts but yes turn off
disconnect red green and white?
all are four are diconnected
ok.Now twist the red and white wires together, turn power back on and see if induced draft motor on furnace starts
sorry got knocked offline, the blower did not start when I put the red and white together. Are you still there?
I am here,You do not what motor I am refering to, Where vent leaves furnace yes?
yes nothing started up
Ok. Do you have a voltmeter?
OK. The very first thing that should happen when you twisted thosw wires together or when you turn thermostat to heat is that little inducer motor should start,Once it proves a negative pressure on vent, it will allow the ignitor to spark,at which time the gas valve will open and allow burners to light.But until that motor comes on, nothing else can happen.Is it possible ti take a small scredriver or something anf see if the blade will turn in the little motor?
where can I put a screwdriver into the inducer? It looks encased.
It probably is is on the Goodman.Some of them, you can see a little fan through the saing
The next thing I would want you to do requires a meter to unplug the inducer motor and check for 120 volts on call for heat. The only way to eliminate it from being a problem is to see if there is voltage to it.Unless it is froze up(seized),that is why I wanted to see if it would turn.With poer off, you could remove the motor just to see if it is seized.I have even found lizards and small varments inside preventing the little wheel from turning
I could remove the motor. I replaced it about 4 years ago
That would be my next recommendation without a meter
that is probably a project for tomorrow at that point.
If motor is seized .THere is the problem,If not and nothing preventing it from turning,then you will need a meter to verify whether it is getting power
if its not getting power, then what is the source of the problem?
Probably the control board.We have eliminated thermostat (by the way all that can be hooked back up), The fact that you made fan come on, says furnace has power.There is nothing else in the circuit before the induce motor.All the limits are later in the circuit
I will remove the inducer motor tomorrow
Let me know what you find
I will let you know tomorrow
Sounds great.Talk to you tomorrow