Steve ,,, the boiler turns on water gets hot pressure starts to rise and keep rising causing the prv to blow excess pressure out.... too much pressure in the expansion tank ?? Relieve the excess psi from the expansion tank ? The Boiler sitting holds at 20 psi about and I bled all the lines still goes right back to about 20 psi
I was actually able to change the relief valve by letting the pressure off, then opening the fill valve, turning on the water just a bit so that the water came back out of the valve, take it off (with a small bit of water comming out, and screwing on a new one. no need to drain down the system. you could do the same with the expansion tank, but unless the air scoop is near by, this tank is in the downward position!
You may be a good technicians, Steve, but as a teacher you did not explain how did you recognize that the expansion tank was broken, that you had to replace the relay board, how did you empty the lines, how you refill the lines back, how did you set the water pressure, etc. You need to edit this video with more explanations so we can understand...
The reason he can tell the expansion tank is bad is due to the leaking relief valve. When the system is cold, the water is at 15PSI and that is where the pressure should stay. The reason it stays at 15PSI even when hot is because of the expansion tank. If the tank is bad, the water had no where to expand as it is heated. That is why most PRV leaks are caused by a bad expansion tank. You don't have to set the water pressure, it is usually fixed by the pressure reducing make up valve at 12-15 PSI.
That's not exactly a T&P but just a pressure relief. But I know what you meant. A bad expansion tank will make the pressure relief valve do exactly what it's supposed to do. If an expansion tank goes bad and fills with water then there is no longer any room in the system for water to expand and it is forced out through the pressure relief. It may or may not leak again when the expansion is replaced but it's wise to replace it if it has been popping.
Those expansion tanks sure go bad a lot, leading to leaking relief valves. Same had just happened to our boiler a few months back that had to be replaced (both the tank and valve).
why not assume the pressure reducing valve go bad? i tested everything last year and found it to be the issue. This year turning on the boiler, i have the same issue - blowoff popping off, pressure OK, and hasnt got up to temperature yet.
Stevie Boy giving it the old Massengill Treatment ... Makes those boilers smell fresh as a daisy ... Lol ... Miss Molly likes to wind dry her hair ... Lol ... Good one ...
I have the same problem couple days later but they only change expansion tank and didn't change pressure relief valve. Is that mean pressure relief valve is bad? How did your got fix?
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Miss Molly Love's cruising in the truck. She looks so happy. Peace brother
Steve ,,, the boiler turns on water gets hot pressure starts to rise and keep rising causing the prv to blow excess pressure out.... too much pressure in the expansion tank ?? Relieve the excess psi from the expansion tank ? The Boiler sitting holds at 20 psi about and I bled all the lines still goes right back to about 20 psi
Nice work. Those expansion tanks are made in Never Land. Because they never last!
I was actually able to change the relief valve by letting the pressure off, then opening the fill valve, turning on the water just a bit so that the water came back out of the valve, take it off (with a small bit of water comming out, and screwing on a new one. no need to drain down the system. you could do the same with the expansion tank, but unless the air scoop is near by, this tank is in the downward position!
Miss Molly ready to take over the show.
So how much air do you put in the tank? I didn't see you check it but assume you did.
You don't need to put air in the tank. It comes pre-set at 12psi from the factory.
Hi: I have a question. when you know that expansion thank it’s not working
You may be a good technicians, Steve, but as a teacher you did not explain how did you recognize that the expansion tank was broken, that you had to replace the relay board, how did you empty the lines, how you refill the lines back, how did you set the water pressure, etc. You need to edit this video with more explanations so we can understand...
The reason he can tell the expansion tank is bad is due to the leaking relief valve. When the system is cold, the water is at 15PSI and that is where the pressure should stay. The reason it stays at 15PSI even when hot is because of the expansion tank. If the tank is bad, the water had no where to expand as it is heated. That is why most PRV leaks are caused by a bad expansion tank. You don't have to set the water pressure, it is usually fixed by the pressure reducing make up valve at 12-15 PSI.
you can also tap it to feel if its hollow
Will a bad expansion tank cause the T&P valve to leak?
Yes
That's not exactly a T&P but just a pressure relief. But I know what you meant. A bad expansion tank will make the pressure relief valve do exactly what it's supposed to do. If an expansion tank goes bad and fills with water then there is no longer any room in the system for water to expand and it is forced out through the pressure relief. It may or may not leak again when the expansion is replaced but it's wise to replace it if it has been popping.
Those expansion tanks sure go bad a lot, leading to leaking relief valves. Same had just happened to our boiler a few months back that had to be replaced (both the tank and valve).
You changed the relay control box? What'd I miss?
It’s nice to watch a Steve Lav vid and get a break from all this crazy shit in the political spectrum right now
why not assume the pressure reducing valve go bad? i tested everything last year and found it to be the issue. This year turning on the boiler, i have the same issue - blowoff popping off, pressure OK, and hasnt got up to temperature yet.
Stevie Boy giving it the old Massengill Treatment ... Makes those boilers smell fresh as a daisy ... Lol ... Miss Molly likes to wind dry her hair ... Lol ... Good one ...
We change pressure relief valve and tank both still water not stop to relieve valve? I paid 800 dollars two different heating cooling company,
probley a leaking tankless coil
Molly the star of the show. lol
Guys my worcester cdi is leaking from the PRV, I purchased a new one, changed it and its still leaking.
Any suggestions?
Love your videos. I had the same problem. I didn't know it's recommended to replace both together. So I had to do it twice.
Steve, leaking pressure relief valves seem to be a common repair with boilers?
Its because they’re piped wrong. Look up Dan Holohan
Hey i replaced my expansion tank and pressure relief valve on my boiler and its still dripping.. what now?? Please help!!!
Steve, you should get some 1/2" M / F valves and use it to attach expansion tank.
Nice job as usual Steve
What happened if they had water in the tank
Thanks Steven, Should be doing a/c vids soon.
Is dat Bklyn I hear?
Ol Miss Molly she put in another long day Momma!
Sweet work
What would be the next step if the pressure relief valve leaks after replacing the expansion tank and prv?
I have the same problem couple days later but they only change expansion tank and didn't change pressure relief valve. Is that mean pressure relief valve is bad? How did your got fix?
turn down the heat
Burnham PV84WC. Same boiler I have.
Steve how bout a funny vlog one day soon
look like the water lines black pipe
It looks like you need to buy some more dope.
These are old fights
Dope on the female threads??????
No sourpusses yet. Lol. Always a few though.
First comment again
I assume he knows what he's doing but doesn't explain anything as he goes.
Maybe a good tech but leave the videos to someone else.