Carrier Apu no start

My Apu will not start. I push the Apu on button and the screen lights up and says Apu starting. Normally I would hear a relay click and the glow plugs whine but it does nothing. It goes through the Apu starting cycle a few times then it finally gives me a cranking limit message.

It goes through the same cycle it would like it's done a couple times when it's been brutal cold and doesn't want to stay running the first couple tries. Except in this case it does nothing.

Any ideas?

 

I would think I'd still hear the relay click and the glow plugs come on? When they come on they whine for a few seconds before the starter engages.

Edit: Bases on Bakari742's post maybe you are correct Sawmill.

 

Ok I'll check that out.

As far as a motel I think I'll pass......

 

I'm up north.

I'll just run the big engine all night if I get cold........

 

Thanks Sawmill. I can't open that on my phone. I'll take a look on my laptop when I get home Wednesday.