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Look in burner compartment for model number.It will be above burners on either right or left inside panel.
Give me model and then look in blower compartment and see if we have a blinking light on control board. If so what is pattern of blinking when furnace should be on but isn't.
I understand.This unit may not have any lights . But if you have ammeter we should be able to troubleshoot when it fails.Below is a flow chart showing us what to check in what sequence when it fail.If you have a meter, let me know when it fails and we will take it step by step .
Should say volt meter not ammeter.
You can get an insexpensive one at Walmart for about 20 bucks if you want to troubleshoot.I help a lot of women troubleshoot and they are often amazed at themselves when we are finished.
Just let me now.May be a limt switch or pressure switch opening
That is correct.Just come back to question when ready