Jotul GF 400 BV won't light

[Occva]

Fired up the stove for the first time this weekend and it burned for about 10 minutes then shut off.
Pilot will light and stay lit.
Switching to on or thermostat does nothing. I have jumped the thermostat and switch, nothing changes.
I have 3 screws where the thermopile attaches, TH / TP / TPTH. Thermopile attaches to TP /TPTH.
Thermopile reads 565 mv across TP / TPTH. If I jump across TH /TPTH it will light.
Any ideas where to look next?

 

[Occva]

If I jump the spill switch it fires up with the switch in the on position and the thermostat position. The flu is clear and clean. Would this indicate a bad spill switch?

 

[Millbilly]

If I jump the spill switch it fires up with the switch in the on position and the thermostat position. The flu is clear and clean. Would this indicate a bad spill switch?

Yes that is a possibility. I believe your model has a spill switch that has a small red reset button in the center. I've also seen the wires that lead to that spill switch deteriorate.

 

[Millbilly]

Could also be a bad switch