Gas and Oil Home Heating Furnaces - gas furnace intermitten

I have a ga furnace ( don't know the name , but it use honeywell part ) , it works fine, until the contractor replaced the igniter. now it is intermitten ( it works for a day or couple days, and then the furnace turn on (only the fan on, no lite or or igniter on , no gas valve open. until I touch the igniter ( 2 blue wire) wire at the gas smvd ( gas control valve) conector it works ( igniter on , gas open and flame ). I did replaced the control board , but it stil do the same thing. do you know ? or have any idea ? what wrong with it. by the way can you tell me , what is starting step, sequential for a furnace . thank you , and apreciate for your help:confused:

If you just had a contractor replace the ignitor and it's giving you problems call them back on it.

Sequence should be on a call for heat.
1.exhaust blower comes on "if applicable"
2. ignitor lights pilot or in the case of a hot surface ignitor the burners light.
3. main burners kick on.
4. house blower comes on.

If you just had a contractor replace the ignitor and it's giving you problems call them back on it.

Sequence should be on a call for heat.
1.exhaust blower comes on "if applicable"
2. ignitor lights pilot or in the case of a hot surface ignitor the burners light.
3. main burners kick on.
4. house blower comes on.

Thank you . I will call him back on it!