Tripac legacy apu bunk heater

My bunk heater has started not wanting to work. It will kick on if I start it, immediately after shutting truck off. But will only heat to temp then shut off and won't come back on. I also have fuel that seems to be leaking from the heater. TK was kind enough, or whoever installed it, to wrap the fuel line with a whole bunch of other wires. Has anyone ever had this issue before with the fuel leaking from under the sleeper from the TK bunk heater? I'm hoping it's a simple replace a piece of tube going to the heater issue, once I get all the other junk away from the fuel line.

 

I will check. I just know before it started leaking a lot lot I could see the drips, doesn't seem to be leaking on the exhaust pipe you mentioned. But leaks enough it drips down the wires and onto the frame rail on the passenger side of the truck. I guess I will look in the bunk space where it's mounted at, might be easier to unscrew it and pull it up from there. Thank you for the advice.

 

Thank you both. I was thinking it will be a clamp, but Dave is probably right too. I'd much rather try going at it from the top than from under the truck. I don't know who installed this apu, if it was a TK dealer or a previous owner himself, but seems very idiotic to have all kinds of other stuff all bunched around the fuel line.

 

Oh I will for sure. I'm starting to feel like I could almost competently service TK apu units on my own now. I have some fuel line but may be the wrong size. I still have some left from when I had to scab rubber line over the plastic fuel line on the apu engine.

And my factory update special for that stupid maxi fuse worked. TK can rub one out for me 172 times before I even think about paying them that much for the "revised" fuse. A regular car stereo amplifier kit fuse block with a 50amp MANL fuse, works like a champ. I'd trust that more any day over the excuse of a revision TK has. It's actually made to be out subject to the elements.

 

Oh I got them. I need to change my water pump belt soon for sure. That thing I'm surprised hasn't snapped in 2 yet. Have to read up on that one though. From what I can tell looks like remove the pulley cover or something at the top and it comes off.