Cozy Enclosed Front Console Heater 70,000 btuh Natural Gas "furnace miss fires" Questions

...will not make (limit switch). On 1-25-08 my partner and I installed a brand new fan type wall furnacein very old apartment building. After we got the old furnace out and new furnace in place we ...

replaced board on heater and pressure switch heil furnace still wont start is it smart valve Hi, if you have replaced the control board and pressure switch, you need to check the sequence of operation

...open high limit relay. Have to pull main breaker to get to reset. I have already taken the entire furnace apart and cleaned it (completely, motort, evap coil cleaned, filters, etc, completely ...