I have a Lennox electric ignition furnace. When I turn up the thermostat I hear the furnace start (it even starts gas flow) but nothing lights.
It has a box where all the wires are attached to.
Here are the markings:
Robert Shaw Controls Company
Model No SP735L-- Lennox P/N 18G9101
Is there a blown fuse inside this box?
Does this problem have anything to do with the box?
Thanks for the help.