Governor froze? Builds air past 125...

You didn't say what kind of engine. Assuming the governor is mounted on the engine you could open the valve on your air tank to prevent over pressurizing the system, then just let the engine heat warm the governor. Close the valve every now and then to see if the governor is working correctly yet.

 

There’s an intake air line running from intake manifold. I’m not sure if pouring liquid into it will damage something or not. I’ve taken the main discharge line ( usually stainless steel) and poured it in there that way it runs through system, although I don’t think through governor. Maybe pour a little into intake if necessary, just hate to see you lock up compressor, Maybe governor is just bad anyway. I had that happen once in very cold temps. Had to change it

 

When I go from warm and wet to below zero I always take the main line off the compressor and throw a little air line antifreeze in there.... that lets it blow threw the air dryer and into the tanks..

It is hard on the air dryer cartridge tho...... but I change mine twice a year anyways.

 

I've always done it that way as well, and have been told it's hard on the dessicant cartridge. my uncle always told me to add air line antifreeze into the discharge line of the air dryer, but my pa always said just to pour it into the braided line from the compressor. years ago we used to run alcohol injectors behind the air dryers, not sure why we went away from that.

 

Money well spent, good deal

 

Well, all is not fine. You have moisture in the system, and that could happen again. When it gets warm again, drain the air tanks, see what you get. Air dryer sounds flakey, as well.