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Boiler relief valve
  The boiler relief valve what it does, why it leaks and how to replace it
The boiler relief valve or the blow off valve is a safety valve that protects your heating system from building up to much pressure and possibly blowing up. It's a very important part of your heating system. Some times the relief valve or blow off valve will leak, and people assume that it is because the relief valve is defective. sometimes this is true, and if it is leaking you should replace it, but it may just be doing it's job. there are 5 reasons a relief valve leaks.
The first reason is, it is defective or just old.
The second reason is, the boiler pressure is to high because of a bad expansion tank "See Expansion tank"
boiler relief valve
The third reason is the pressure is to high because of a bad
f
ill valve.
The forth reason
is, the pressure is to high because of a leaking coil or a leaking indirect hot water maker.
The fifth reason is, the boiler is over heating and making steam.
What should the gauge on my boiler read?
Please click on the link below to for the rest of the instructions.
Troubleshoot your boiler relief valve.

 

Please read a note from me about the upcoming heating season.
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