My old Bryant 125-394u furnace quit working over the weekend. The pilot light stays on but the furnace won't light. I bought a new thermocouple as that seems to be a common issue but the new one has a much longer probe on the pilot light end. Can anyone tell me if that is normal of if I can find a better replacement that fits correctly. The current probe on the flame end is only about an inch long and it is a clamp style holder not a push in. Thank you for any positive input.