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In order for the module to send voltage to the gas valve, you must first have 24 volts to 24 V (GND) and TH-W. Do you have 24 volts here o0n a call for heat?
If you do and control does not send 24 volts to pilot to light and then main gas, it would be a bad control.
The control is designed to send 24 volts to MV/PV and PV on gas valve and first light pilot. Then if the system has a flame sensor, it must sense pilot flame and then allow main gas to come on. I'm not sure what setup you have there as that's a very old furnace.
Does your pilot have a separate flame sensor or not?
Where do you have the sensor wire on the control? Is it connected or not:
When you call for heat, does control spark and light pilot or not?
Is this a separate venter motor arrangement that you have? This is not standard to my knowledge.
Are you venting vertically through the side of the house? This would usually be where a Tjernlund would be used.
If you jump out the air proving switch does it then work?
Try that, and let me know. I have to step away for a few minutes, but will check back.
No, I'm just saying to jump past the air proving switch to see if the ignition process works.
If there is some special way this is wired, you'll have to let me know as I have access to standard Lennox furnace wiring diagrams, but not some optional equipment wiring.
Just bookmark the page and come back to it. Question will remain open.
When you get a chance, please look at that Tjernlund manual you sent me a link to and go to the wiring diagram pages and tell me how yours is wired. It will probably correspond to one of those diagrams.
No, I don't believe so. Perhaps if you highlight everything and transfer it to another file, you can print.
OK, thanks for the update.
Let me know if you still wanted to work more on this question.