Gas Heater starts but shuts down at end of cycle
I have a heater problem where the heater seems to start and run through a cycle and shuts down at the end of the cycle. When it shuts down it shuts down the thermostat as well.
I first thought the switch on the front panel was bad because the first time this happened I removed the cover looked around and put the covers back and it started. It then stopped after the first cycle. I remover the covers again and taped the switch down and it seemed to work again. (I thought it worked for a couple cycles but not real sure about that) It failed again.
I have had the HSI fail and this is not the case here.
Any ideas?