I have a QuadraFire800. Love this stove. A few days ago it started acting wierd. Basically, the stove will fire up when I turn up the thermostat......but after 60 seconds or so the auger just stops feeding. I can hit the reset auger button and it feed pellets for another 60+ seconds. Then stops. Repeat. Repeat. What could cause the auger to shut down like this? If I sit there and push reset I can get a normal fire going with full blowers. But I can't heat my house otherwise