I have an intermitent problem with a 2-year old Carrier natural gaz furnace. Expecially in the morning, when the house temperature is at
65 degrees, the furnace fails to turn on despite the fact that the thermostat is sending the proper signal. The strange thing is this: there is a switch on the main power supply for the furnace. Usually, one or two on/off flicks of that switch get the furnace started. Any suggestion to troubleshoot this problem? Thank you, Stephan.- posted
20 years ago