I have a accentra insert that will not light in room temp mode. Stove temp mode works fine. It auto ignites and burns just fine. I need some help to resolve the 4 blink error code in room temp mode. I measured the resistance of the probe at 70 deg f and it was 3800 ohms. Is this the right number. As far as I can tell the probe is ok and the wiring is ok .Any suggestions on were to go from here.