| <<I put in another limit switch. But now I can't get the ingition surface to ignite.
My hot ignition control when I turn on the furnace goes to the yellow for 2 secs, the solid green and I hear clicks, then it locks out.
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What should happen is this:
The thermostat calls for heat.
The inducer motor fan starts up.
The hot surface ignitor glows white hot
The main burner gas turns on and lights off the HSI.
The blower fan turns on.
Your description isn't clear, but it sounds like the HSI gets hot and you can hear the gas valve click to turn the gas on, but it doesn't light.
What is the yellow and green you mention? I have no idea what that refers to.
Assuming my description is describing what is happening, check to be sure the furnace gas valve is turned to "on," and that the manual gas shutoff valve to the furnace is on (in line with the pipe.
Is this natural gas or propane? You need to be sure your gas supply is turned on and that you have a supply of gas.
Do you have other gas appliances --- are they working?
Can you hear or smell gas coming out of the burners after the relay clicks?  |