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I need the model number of your unit. It's on the rating tag inside the burner compartment
Give me a few to pull the specs for your unit.
How long does it shut down before it starts up again?
Could be a bad connection possible a bad ground. One possible source of a bad connection is the thermostat or thermostat wiring. If you want to try some troubleshooting try jumping the R & W terminals on the thermostat terminal strip in the furnace.
You can leave the leads connected or not it doesn't matter. Also make sure you ave a good ground from the board to the junction box where the line voltage (ground) is connected to the unit.
Yes restart it. Be sure the blower door panel is properly in place or it won't run
Yes it should run until the thermostat is satisfied
Bypasses the thermostat and thermostat wiring
If it runs for longer than it did before (you said ~5 minutes) then we can assume a problem with the thermostat or stat wiring
Ok so not the thermostat. It gets more difficult to diagnose from here. Let it run and watch the amber /yellow LED on the board. Does it flicker or go out when the burner drops out?
You have no yellow LED?
Is one designated FLAME?
If so then that's the one to watch
If it's running then wait until it shuts down to check
There are 2 versions of this board according to my specs. The one that has OK & PWR also has FLAME. The one that has 2 LEDS is labeled OK & FLAME. Let's see what happens when it shuts down.
Both lights go out?
Do you have a multi-meter?
The PWR LED should not go out as long as there is power to the unit. So either the power is dropping out or you have a bad board.
I'd appreciate a favorable rating
Here's the parts list Attached.you need to refer to your serial number for the right one. Since I don't know the age of your unit I'll also upload the other list in a minute
Here's the other one