I have a White Rodgers 1F97-1277 thermostat. I set it to call for emergency (propane) heat on my York heat pump. Display shows 'Heat - Stage 1'. When I look at the furnace, no heat and no flame. The status light is blinking a slow amber, which is call for cool. This is not a new install.
My thoughts: Perhaps the cool is the defrost cycle for the heat pump (is that stage 1?). However, one would think if it can't meet the demand from the thermostat using the heat pump, it would turn to propane for heat. The amber light though means the furnace thinks the thermostat is calling for cool.
Why would the furnace show a call for cool, when the thermostat shows it's calling for heat.