Have an old gravity furnace. Pilot generator putting out 575 mv, however gas valve won't open (ITT General Controls B60 gas valve). How do I troubleshoot valve? What external or internal checks? I have the valve head off and looking under the diaphragm I don't see anything obvious. I'm not...

Hello everyone! This morning before I hopped in the shower, I bumped the temp in the house up from 62 to 67. Well the furnace went through it's normal procedures and I noticed the blower turned off very quickly and I can hear the igniter trying to light the burners again. Well, not thinking...

Each year when it gets cold, my Gas Air Conditioner won't start when its to cold out. I turn the thermostat up, the unit clicks but then doesn't start right away. Sometimes it won't start until the sun hits the air conditioner. Last year I replaced the valve and cleaned the flame sensor. From...

I am replacing a valve in a 10 year old goodman furnace. The old valve has an orange lead in going to the "m" terminal and blue and green leads going to the "c" terminalfor a total of three leads . The new valve only has two terminals . How can I connect the new valve thomdunkneedshelp