[mhorvath]

And the flame goes out. The flame sensor looks good the metal probe is not disclored could it still be bad?
The heater work fine last year when I used it. This is the first time I started it up this season. I live in a duplex and the other heater is working fine so I believe that the chimney is clear.The model is GMP075-3 Serial #9310085870 Goodman ( Imput 75,000, output 60,000- motor one third horse power. After the heater makes three attempts the red indicator light blinks once every 4sec. Last season I did not use the heater much but when I was home and did it work great.
Thank You Mike

[wmproop]

The flame sensor looks good the metal probe is not disclored could it still be bad?


Not bad in particuar ,just need cleaning, use fine steelwool or very fine sandpaper, u might not see what is hindering it to work right

[mhorvath]

Clean nthe flame sensor but still not working

[mygirlsdad77]

Did you physically pull the flame senser out and clean it up real good? Sure sounds like a typical dirty flame senser. It can be pretty tough to get it clean enough without removing it. Do you have a multimeter with ua setting? If so, you can test the senser with that.

[mhorvath]

I did remove the flame sensor to clean it with steel wool no change so I bought a new one for $13 it still did the same thing. The connectors look tight do not see any burnt wires. Do you still think that it is the flame sensor. What do I do now??