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Dev1954 · 04-29-2025, 02:06 PM

My wife and I are fairly new to rv'ing, however we've owned our coach for the past two years and been in it for most of that time. We have a 2021 London Aire and the last night before storing it for a few months we both heard a strange noise which sounded like it was coming from underneath the drivers seat. It sounded like a pump running, however everything was off.(ac, heat, floor heat, all off). We were plugged in, slides out, and jacks down as normal. In almost two years we've never heard it before.
Didn't have time to investigate other then to make sure there was nothing leaking under the coach. Had no problem getting ready to depart and than getting to storge facility.
Any thoughts?

Dutch Star Don · 04-29-2025, 04:42 PM

Was the air leveling ON? I know you said the jacks were down.

Dev1954 · 04-30-2025, 04:04 AM

No, not that I'm aware of. To be honest, I'm not exactly sure what the term "air leveling" means. I've heard reference to it before, but I've always leveled the coach one way. Auto level to put the jacks down, auto store to pull jacks up. Once in awhile I've made manual adjustments to get to where we want it, but that's it.

Dev1954 · 04-30-2025, 04:16 AM

Possibly I found the answer to my question.
I was reading the thread "What the heck does this button do" and part of one of the responses included "The HWH air leveling system, according to the manual, will maintain level as necessary by turning on the auxiliary air compressor whenever the airbags leak down enough to put the coach out of level."
Could this be my answer?

shepardmike · 04-30-2025, 07:46 AM

Quote:

Originally Posted by Dev1954

Possibly I found the answer to my question.
I was reading the thread "What the heck does this button do" and part of one of the responses included "The HWH air leveling system, according to the manual, will maintain level as necessary by turning on the auxiliary air compressor whenever the airbags leak down enough to put the coach out of level."
Could this be my answer?

Most likely. Assuming the noise stopped after a short period of time?

Dutch Star Don · 04-30-2025, 10:54 AM

Quote:

Originally Posted by Dev1954

No, not that I'm aware of. To be honest, I'm not exactly sure what the term "air leveling" means. I've heard reference to it before, but I've always leveled the coach one way. Auto level to put the jacks down, auto store to pull jacks up. Once in awhile I've made manual adjustments to get to where we want it, but that's it.

Your coach should have air leveling. Which means that when you come into a campsite, for just an overnight stop, you can level the coach with air, not the jacks. It's a very nice feature on your coach and all the "Air" level coaches like Mountain Air, London Air and King Air.

The coach will lower and then an air pump will come on to automatically level the coach with just the airbags, no jacks. As air leaks out overnight, the pump will come on intermittently to refill the system and keep the coach level.