i have a gas furnace installed in 1991, i have replaced the gas value single, the blower comes on and the pilot stays on but will not light. Got wet when we had the storm in october 2012, its located under my home

Hello,

Sorry about the furnace :( No fun having a broken furnace...
I would look at the circuit board inside the furnace, especially if there is recent moisture damage.

Thanks
Meridian | Boise Heating & Air Conditioning Specialists

I need the burner limit switches numbers on my model THP075A942A4, Serial No. F36316407 910905423, also 207742A, H8200SP. I cannot find the manual for this unit and am unable to get it on line. It is a trane unit by Am Standard put in in 1991.