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Is this a hot water or steam system? do you have a standing pilot (lit all the time) or electronic ignition? do you have a vent damper? if so is it open?
If you have a call for heat and the damper doesn't open then nothing else will happen. But I'm not finding an EG with a damper and standing pilot. Actually the only EG's I can find with a damper are EGH. Can you give me a couple pics? one showing the damper and another showing inside the burner compartment a 3rd showing the LWCO and other controls would also help You can post a picture here by clicking on the paper clip icon in the tool bar at the top of this dialogue box. You can only post from a PC or a Mac not a phone or a tablet. If that doesn’t work for you then you can upload a pic to a file sharing service like Google pics or Dropbox. Then post the “share” link to your picture here or you can email the pic to customer service but the last option can take quite a while to get to me. Click on the CONTACT US link to contact customer service. http://ww2.justanswer.com/contact-us
Ok, odd that I can't find a wiring diagram for this yet. I assume the water level is up. Try this, jump the thermostat leads where they connect to the boiler. Maybe that will get the damper to open. Let me know if anything changes. In the mean time I'll keep looking.
You have to trace the wire from the thermostat to where it connects to the boiler. Should be 2 wires. You need to connect the 2 wires or terminals together where the thermostat wire connects. I think I see it in the last pic you posted. The brown cable with 2 wires from it connected to the boiler wiring. But I can't be sure where it goes from your picture
Ok, I found the wiring diagram. There's also a switch sensor below where the vent damper is on the side of the sheet metal box that's open on the bottom. It has 2 wires connected and a small button in the middle of the 2 wires. Try pushing that button. If it clicks then you have reset it and the damper will open and the burner fire up with any luck.
Try pressing the reset button I just described above first.
Worth taking a shot. It will only click if it was tripped. Back to the thermostat wire. The wire with the brown outer sheath and looks like 2 smaller wires inside it connected. Are there only 2 wires from that cable? are they connected to 2 black wires?
I didn't ask that. I asked how many were connected and if they connect to black wires
OK, turn the power off to the unit then take the wire nuts off of those 2 wires and connect them together (including the black wires). Then turn the power back on.
Then you've done all you can. You're going to have to call in a pro.