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Fuzzybunny 11-11-2008 03:52 PM

Problems with an old Carrier
 
I have a 10+ year old model that won't allow the pilot light to light. I have taken the pilot light assembly and thermocouple out cleaned the thermocoupler and blew out the pilot light with compressed air and reinstalled. The pilot light does not light or even flicker.

My question is: if the thermocoupler is bad, will it not allow the pilot light gas? From what I understand the coupler only opens the main gas line to the burners if hot enough to light them and does not control the pilot gas.

I have another HVAC elsewhere in the house and it works fine so it is not gas, the blower works and the control center clicks when turned on. It does mention a fusable link and I am not sure if that would effect the pilot light.

Thanx in advance!

kennzz05 11-11-2008 04:18 PM

you talking bout standing pilot not spark ign right? thermo wont keep pilot from lighting only from staying lit after button is released you are depressing knob on valve after turning knob to pilot position?

Fuzzybunny 11-11-2008 04:47 PM

Quote:

Originally Posted by kennzz05 (Post 183437)
you talking bout standing pilot not spark ign right? thermo wont keep pilot from lighting only from staying lit after button is released you are depressing knob on valve after turning knob to pilot position?

Yes it is a standard pilot, and yes I pressed the knob down as I was attempting to light it. I actually held it down a full minute to make sure all the air was out of the line and showed no evidence of lighting.

kennzz05 11-11-2008 04:59 PM

Quote:

Originally Posted by Fuzzybunny (Post 183458)
Yes it is a standard pilot, and yes I pressed the knob down as I was attempting to light it. I actually held it down a full minute to make sure all the air was out of the line and showed no evidence of lighting.


loosen the pilot tubeing where it comes out of the valve depress the knob do you hear/smell gas yes: something is still clogged at the pilot assembly if no than id start looking for another gas shutoff somewhere downstream


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