Hi All, Let me start by saying that I am very new to this. I just bought my house and woke up to a cold home. I am good with tools but am just figuring out the furnace. There is no ignition in the furnace. It looks like the signal from thermostat is reaching the furnace and the furnace does try to start and quickly errors out. From the flashing lights on the furnace logic board it looks like the ignitor needs to be replaced. I am trying to get the burner box cover off. I removed the 4 screws on the front cover but it is still stuck very tight. Is there a reason for the cover to be glued to the box? Should I just keep yanking at it or there is a trick I am missing? Sorry for the silly question but any help will be appreciated. Also I did unplug the HVAC and closed the gas line. Is there any other safety step I am missing?