Skip to main content ↑ ↓
Topic: 2014 IH 45 air leak? (Read 282 times) previous topic - next topic

2014 IH 45 air leak?

our auxiliary air compressor started cycling every 35 to 40 min. last week while we were setup. I have a couple questions.
1. I have not noticed this frequent of cycling before, is this a indication of air leak somewhere? I believe it is.
2. If one of the slide seals has a leak is there a way to find out and pinpoint which one?
3. I pulled the fuse on the air compressor and the coach stayed level, but the air compressor still cycled, is this possible?  does the HWH have a separate control on the compressor to keep the coach level?

Thanks
2019 IH45
    2014 IH45
        2003 U320

Re: 2014 IH 45 air leak?

Reply #1 –
If compressor is coming on that often you have a good leak. In your compartment with the compressor on the right wall you are going to have 4 modules. One is for each slide.  At the bottom of each one where an air line connects to the modules there is a valve. Turn those off and  see if compressor keeps cycling. I just had to replace the fittings that are connected to a check value that is above the compressor since they started leaking badly.

You removed the fuse at the compressor and it keeps running?
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: 2014 IH 45 air leak?

Reply #2 –
Yes,  with the fuse out we came back to the coach and I could hear the compressor running it shut off and we had no air to operate the slide doors inside.  I put the fuse back in and it immediately came on for a short cycle and we could operate the slide doors.  I must say I had it in my shop with the fuse out and my wife would say the compressor was coming on while she was cleaning and I figured she had to be hearing something else.
2019 IH45
    2014 IH45
        2003 U320
 

Re: 2014 IH 45 air leak?

Reply #3 –
Pretty new to FT but was talking about the aux pump to a fellow IH45 owner at Grandvention and he mentioned needing to disconnect a wire from the HWH side to completely isolate the aux pump.  Look for a single wire with connector slice on the right side of the aux pump, between it and the HWH unit.  I have not tested his suggestion.  I have a fuse holder and what looks like an after-market switch that seems to kill the aux pump.  Would think the pressure switch has to remain in an HWH bypass circuit to provide a cut-off from over pressure.
PS--had the aux relay lock up on our last trip.  I remove/rehab-ed the relay but managed to mess-up the wiring upon re-install.  This kept the electric dump valve on the desiccant moisture bulb open.   
Old Scout
2015 IH45
New Braunfels Tx