Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Munchkin 199MLPHA

I have searched around and can not find my exact problem. I would periodically get a PRO pressure warning on my system.... This happens when it is done heating and is shutting down. The pressure to my floors stays constant at 21 PSI... I have an auto glycol filler in the event that it drops. But The level in the re-filler has not changed. I had a plumber out and he replaced the pressure valve. He showed me the one in it and it was black and the new one was a little different design....  So now today I am getting a pro warning but the pressure is steady....... I do not see any leaks and I would assume I would see my glycol go down to make up for what I am loosing.... Anyone have any ideas?
This discussion has been closed.