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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8427
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Burnham boiler burners shutting off and off could it be a

Customer Question

Burnham boiler burners shutting off and off could it be a bad vent damper
JA: Are you getting any error codes or blinking lights on your boiler? How old is it?
Customer: Don’t have test equipment but have 1 a green light and 1 yellow light that blinks then burners come on then go off damper is open
JA: How long has this been going on with your boiler? What have you tried so far?
Customer: 4 days found 1 zone valve motor bad been replaced
JA: Anything else we should know to help you best?
Customer: No everything else seems to work
Submitted: 20 days ago.
Category: HVAC
Expert:  Rick replied 20 days ago.

Welcome to Just Answer, my name is Rick and I will do all I can to help you with your issue. First I’ll need some more info so I have a more complete picture of your situation. Please be patient it can take a few minutes for me to respond. What’s the model number of your unit?

Customer: replied 20 days ago.
206
Expert:  Rick replied 20 days ago.

How old is this boiler?

Customer: replied 20 days ago.
6 yrs
Expert:  Rick replied 20 days ago.

Where is this yellow light? On the LWCO (low water cut off)? What's the pressure on the gauge?

Customer: replied 20 days ago.
It's on control box it doesn't have low water control switch
Expert:  Rick replied 20 days ago.

Yes it does have a LWCO it's part of the temp sensor. Do you know where that is?

Customer: replied 20 days ago.
Yes I do
Expert:  Rick replied 20 days ago.

remove sensor from well.

a. Make sure metal clip is protruding enough to come in contact with inside of well tube.

b. Check to ensure well does not have any heat transfer grease or other contaminants that may interfere with metal sensor hear contacting well.

c. If this does not resolve problem, drain boiler, remove well and examine for excessive residue build up. Clean as needed and re-install.

Expert:  Rick replied 20 days ago.

What is the boiler pressure???

Customer: replied 20 days ago.
My temperature sensor only has 2 wires on it
Expert:  Rick replied 20 days ago.

Show me a pic of the control that has the yellow light

Expert:  Rick replied 20 days ago.

For info to upload a pic or file click on the link below
https://www.justanswer.com/help/how-do-i-send-photo-or-file-expert

If you’re texting you need to follow the email link to this conversation on a computer to post pictures.

Customer: replied 20 days ago.
Customer attachment 3/20/2020 6:27:34 PM
Expert:  Rick replied 20 days ago.

You need a multimeter to troubleshoot this

Customer: replied 20 days ago.
I did change out control box still same problem
Customer: replied 20 days ago.
I had a spare one
Expert:  Rick replied 20 days ago.

You can't troubleshoot this without a meter and you need to know how to use it

Customer: replied 20 days ago.
Hi again
Can I take out temperature sender with out draining the boiler
Expert:  Rick replied 20 days ago.

You can take out the limit control. You don't have a temp sensor. That on a later version. The limit control has a copper bulb that inserts in a dry well.

Customer: replied 20 days ago.
Could it getting covered with corrosion
Customer: replied 20 days ago.
AI carbon
Expert:  Rick replied 20 days ago.

If you see carbon/soot anywhere then your boiler needs to be cleaned by a pro.

Customer: replied 19 days ago.
Limit switch does go in to water pipe do I need to drain boiler