Is it normal for the red LED on the control box to be lit during normal operation? I recently just bought a house with a Castile already installed and have noticed that the control box has the red and green LEDs lit during normal operation. It's the older control box (solid gray). What should I check if this is not normal?

Yes, the problem has been resolved. I replaced the snap disk and rechecked the connections to the disk and it works without a problem. I'm not sure if it was the actual snap disk or the connection, but either way it works now. Thanks everyone for your input!

If I jumpered the 2 wires together and it worked, wouldn't that tell me that everything is connected properly? So basically that snap disk is the only thing that would prevent the convection blower from not working, correct?

The wires are purple. If it's not the snap disk, what else could it be? The snap disk is brand new, but i guess there is the possibility it could be bad. Is there anyway to test the snap disk with a meter?

I just purchased a house with a Quadrafire Castile insert. The convection blower is not working and the stove shuts down after 10 mins or so. I just replaced snap disk #1 and it is still not working. I also jumped the 2 wires to snap disk and the fan does operate, so I know the fan is good. The control box is original I believe (mfg date on board 2002). The green LED lights up when i jumped the wires and it also lights up after a certain amount of time...my guess is that indicates that the stove is up to temp and the convection blower should come on. I'm at a loss as to what the problem is here. Before replacing the snap disk, I removed the control box from the connector and cleaned the contacts with isopropyl alcohol and a q-tip, and that fixed the issue, but now hasn't worked since. Does anyone have any suggestions on what to try next?