Suspension won't air up?

[thomas_sorrentino]

I tried to move my coach today while the ground was nice and frozen. I suspect that wasn't the only thing frozen
Air pressure was up, but the suspension wouldn't air up, tag axle worked fine. I tried cycling switch off and on, ignition off and on and even drove a little to try to loosen things up.
Any suggestions? Where is the frozen part physically at? To prevent this should the suspension dump switch be left on when shutting down in cold weather?

[Crit Bliss]

Hi Tom, that happened to me last year with our FC; the rear would not air up, I assume the pilot control relay valve on the rear was frozen. I drove it around the block and it was aired up by the time I got back home, condensation I figured.
Crit Bliss '80FC33 chatham,ma

[thomas_sorrentino]

Went back out to it this evening and the suspension aired up fine. Something must been frozen! I'm wondering if the position the suspension dump switch is left in upon shutdown, would help prevent this problem in freezing weather?

[iamflagman]

Originally Posted by thomas_sorrentino

Went back out to it this evening and the suspension aired up fine. Something must been frozen! I'm wondering if the position the suspension dump switch is left in upon shutdown, would help prevent this problem in freezing weather?

Tom,

I'm not sure if your ost is showing up on the emails, so lets see if it is with this reply.