I have a carrier steam boiler setup that's about twenty years old, fairly modern. My carrier automatic vent damper is sticking shut and keeping the electronic ignition from firing. This happens about once every couple of weeks and until recently I was able to just unplug the molex connector and it would close when I plugged it back in. This last time it didn't shut and I had to turn the little square end of the damper that sticks out of the sheet metal a bit and I heard the actuator kick in and turn it the rest of the way. Should I lubricate this thing a little bit? It doesn't sound any different than when it did when it wasn't working perfectly, not dirty or grungy or anything. It just sticks open and keeps the furnace from firing. It was -4 below here in the west suburbs of chicago last night. Not good.
Thanks in advance for your help. Ray
Thanks in advance for your help. Ray