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New & Improved - N/F John November 23rd 07 03:39 AM

Low Water Cutoff in Boiler - Steam
 
I have float type cutoff switch that gets stuck in the down position after
draining the boiler. I had the service tech over twice and each time all he
did was giggle the switch to start the burner. He said the muck in this old
boiler is the cause. Today it did it again and I did the same thing and
then it eventually unstuck by itself. What a pain!

This cutoff mechanism looks easy enough to take apart to clean. He said he
could do it but it would only muck up again. What do you think I should do?

John



Edwin Pawlowski November 23rd 07 05:10 AM

Low Water Cutoff in Boiler - Steam
 

"New & Improved - N/F John" wrote in message
news:VXr1j.26125$9h.8025@trnddc07...
I have float type cutoff switch that gets stuck in the down position after
draining the boiler. I had the service tech over twice and each time all
he
did was giggle the switch to start the burner. He said the muck in this
old
boiler is the cause. Today it did it again and I did the same thing and
then it eventually unstuck by itself. What a pain!

This cutoff mechanism looks easy enough to take apart to clean. He said
he
could do it but it would only muck up again. What do you think I should
do?

John



The service tech is an idiot. As Bubba stated, order the gaskets and clean
the shutoff. If there is a lot of muck, look at what has to be done to
clean the entire boiler. That muck can make for poor heat transfer and loss
of efficiency.

Low water cut off is a very important safety device. Care for it properly.



The Freon Cowboy November 23rd 07 01:22 PM

Low Water Cutoff in Boiler - Steam
 
clean out the low water cutoff, reassemble,

then learn to blow the thing down regularly !!!!!!!!!!!


"New & Improved - N/F John" wrote:
I have float type cutoff switch that gets stuck in the down position

after”draining the boiler. I had the service tech over twice and each time
all he


New & Improved - N/F John November 23rd 07 11:13 PM

Low Water Cutoff in Boiler - Steam
 
What can be done to flush it? Should I attach a garden hose to the drain on
the covered piping and force water in the opposite direction? What about
some air pressure?


"The Freon Cowboy" wrote in message
m...
clean out the low water cutoff, reassemble,

then learn to blow the thing down regularly !!!!!!!!!!!


"New & Improved - N/F John" wrote:
I have float type cutoff switch that gets stuck in the down position

after”draining the boiler. I had the service tech over twice and each

time
all he




beecrofter[_2_] November 24th 07 02:01 AM

Low Water Cutoff in Boiler - Steam
 
On Nov 22, 10:39 pm, "New & Improved - N/F John"
wrote:
I have float type cutoff switch that gets stuck in the down position after
draining the boiler. I had the service tech over twice and each time all he
did was giggle the switch to start the burner. He said the muck in this old
boiler is the cause. Today it did it again and I did the same thing and
then it eventually unstuck by itself. What a pain!

This cutoff mechanism looks easy enough to take apart to clean. He said he
could do it but it would only muck up again. What do you think I should do?

John


If you don't blow down the boiler a gallon or two periodically to
remove the muck this is what happens.

Edwin Pawlowski November 24th 07 02:15 AM

Low Water Cutoff in Boiler - Steam
 

"New & Improved - N/F John" wrote in message
news:x8J1j.6675$ch.5289@trnddc03...
What can be done to flush it? Should I attach a garden hose to the drain
on
the covered piping and force water in the opposite direction? What about
some air pressure?


Depends on your boiler design. Some can be opened up and a hose can flush
it out.

In use, the boiler should be given a "blow down" on a regular basis. This
is done by opening up the drain while it is operating under pressure. It
forces out any accumulated solids. The water column should be flushed that
way also. Industrial boilers are piped into a tank that can take the
pressure and steam and then allows the water to go to a drain.




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