Product review (5 stars): Worked well, but is a complex replacement part
Much cheaper than having my qualified furnace guy come perform the work for me..

But I want to emphasize some caution, this is an updated configuration switch (connectors have been renamed and moved) and while it contains pretty good directions for installation in the old furnace I'm an engineer and had to re-read them a couple times...

Be confident in your ability with electronics and brief directions before taking on this replacement yourself..