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Too much water in the boiler won't stop it from lighting but it may stop it from heating your house
First you need to drain some water out of the boiler to lower the water level to 1/2 to 2/3's of the glass
when i do that will that level in the glass gauge go down?
i am sorry
i see that you do say that
just so you know i drained it an hour ago, but the level in the glass didn't change
you need to keep draining it
ok. i will shut the automatic water feed and start draining.
It's possible that if there is way too much water in the system it could stop the burner from lighting by putting pressure on the pressure control
It can take a long time to drain it if there is way too much water
you should be draining from the hose faucet at the base of the boiler
i think that is the case, but when i drained, All the water was out, but that water gauge didn't move (still at full) so I stopped. My only way to drain is to put it in a bucket. the boilder is in the basement and I have no water drain in this 1940 built house.
I have two buckets now and I am draining.
You need to be sure the valves at the top and bottom of the glass are wide open
and you should drain it from the hose faucet at the bottom of the boiler not the low water cut off
I will check the glass valves now.
glass valve is wide open. based on lefty loosy... the drain on the boiler is the lowest so I think I am doing this right.
if both valves are open (counter clockwise is open) and the glass still looks full then you have some draining to do
I thinks something just changed. the glass gauge now emptied. I think something was stuck, but it is completely emptied and the water is still coming out. can i stop now.
stop if the glass is empty
turn the water feed back on and watch the water level
let me know if the burner starts when the water level comes back up
water set at right height. nothing firing up
pilot is lit?
Is there a motorized vent damper on the flue?
is it open?
can you see where the thermostat wire connects to the boiler?
I'm assuming the power is on to the boiler
jump the 2 terminals that the thermostat wire is connected to and tell me what happens
"jump the 2 terminals?"
take a small piece of wire and run it between the 2 terminals where the themostat connects to the boiler. The idea is to bypass the thermostat and the thermostat wiring
ok. let me see how i can do that.
some older models
have the thermostat leads connected at the pressuretrol (pressure control) if this is what you have then just connect the 2 leads together that the thermostat wires connect to
i connected the two wires bypassing the thermastat. nothing fired up.
the first thing that should happen is the damper should open
what type of LWCO (low water cut off) do you have? does it look like this
closed, nothing moved
mcdonnell 24 v.a.c.
does it look like the above
or is it just a control box mounted on the side of the boiler?
ok, then the most likely culprits are a faulty LWCO or a faulty vent damper
looks like you may have a reset button on your LWCO
try pushing the red button
i have. will do again.
those are the 2 most likely culprits
ok. thanks for the help though.
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