Goodman gmt070 inductor fan clicks on, pilot glows, nothing

this is normal the clicking sound you hear is the system starting another cycle for your furnace to ignite the burners, then turn on tbe fan blower.

Release the vacuum line and blow into it when it first starts. If this works then it is a bad pressure switch. If not then locate the safety sensors around the burner. Jump them out until the gas valve opens and lights the burner.

common problem on gm products
the shifter has a cable going to trans. sometimes it stretches and the prndl gets out of sync.
you could also look at the cable going to the dash from steering column. it is about 3" and gets tangled up.

Pressure switch closed

I cleaned the sensor that was at the the right further most burner on my Goodman and it worked. got the answer to my problem here at fixya. My burner flame only lasted 5 secs before it shut off. Thanks to all who took the time to send me a response.

The whole assembly must be replaced.

The sequence of operation is -

Combustion fan purges the heat exchanger. A pressure switch verifies combustion air fan is running. Usually a 30-45 second purge before the hot surface ignitor glows, or the spark ignition starts.

Gas valve opens after 10-15 seconds and main burners light. Control board monitors for flame and shuts gas valve after 2-3 seconds if main burner does not light.

If burner does not light, some boards repeat this for 3 tries, then locks out and is reset by cycling power.

Air blower comes on after another 30-45 seconds after main burner ignition.

Times may vary based on the specific controller board. A flow chart and timing sequence should be located somewhere on the unit, usually in the fan compartment.

look for flashing code thru blower door peep hole aftter it shuts down and let me know the amount of flashes

the pressure switch is closed before the draft motor closes it.the board is telling you that this is not right.pull the wire(either) off of the pressure switch to see if furnace tries to light.if it does,you should replace the pressure switch.

For the L2 L4 inductor specification, I check the following website, on there have original L2,l4 inductor power and specification

http://www.logictoyz.com/nintendo-ds/nintendo-ds-lite-spare-parts/ds-lite-l2-inductor-power-replacement-.html

By the way,L2,L4 is not fuse,
It is Inductor power

The fan cycling problem on the T23 series usually indicates a loose solder or missing inductor which is usually on the underside beneath the PCMCIA slot. If you replaced the mobo yourself you may have flexed what is a weak solder joint loose - you will need to pull the board and resolder this or have someone else do this for you. You can sometimes get the laptop to start by flexing the assembled laptop gently around the PCMCIA slot and if so then that almost always means an inductor problem. You can find some photos by googling (images) "T23 mobo" or "T23 motherboard".