I have a 2yr old Lenox furnace, it wont ignite. I have two indicator lights that give me a code as to what might be the problem.
It activates the ignitors and they get hot, but never ignite the chambers. It kicks off the ignitors and then tries again. After a few tries, it give me this flashing light and the chart says it could be one of the following things:
- Pressure switch is open or has opened 5 times in a single call
- Blocked inlet/exhaust
- Pressure switch closed prior to activation of combustion of air blower
Please help me out guys, its a brand new unit.