New air dryer keeps freezing up

Still moisture remains in the air system even though the dryer has been serviced. Check the heater in the dryer for good 12V to light a headlight. Drain the tanks daily or more often during above freezing temps. While only as a last resort, you can add alcohol after the dryer to keep things working through the winter. It will take some time to work it all out.

 

Pull the supply line off the compressor and put alcohol in the line let the compressor blow it threw that air dryer and on to the tanks..... some will go out threw the purge valve but who cares.....

And yes this is hard on the cartridge but again who cares how much bs comes from 2 freeze ups.... put a new cartridge on in the spring....

 

Chances are you have a bad air compressor oring. It’s throwing unusual amounts of moisture into your air lines and causing the air dryer to freeze up. Especially if you may have delivered to any warmer climate and noticed there was a lot more water in your tanks than usual. I know this because I am sitting in Kansas at this very moment and this was my problem.

 

Forgive me for not understanding but what oring on the compressor causes moisture to get in? If moisture is in the air, that’s what’s gonna go through the compressor no?

 

Moisture or condensation happens when the air is compressed. When air is compressed heat is generated and water droplets form due to the temp change from ambient. Just a matter of science. Even a completely sealed system will have water. Air leaks actually cause more water because the compressor has to run longer and more often to maintain air pressure. But the moisture will be there regardless, just depends on how much.......... which will vary greatly by location and operating conditions.