mrad
Prineton, MN
Senior Member
Joined: 08/23/2007
View Profile
 Offline
|
Last week we picked up our 2015 5h wheel from a dealer. They took us through a walkthrough and explained how things work. We left the dealership and headed straight for a campground. The next morning when it was quiet, we noticed a humming noise. We cannot figure out where the sound is coming from. We did not notice it during the walkthrough, but that could have been because of the noise. The fireplace sits towards the front right by where the steps are to walk up to the bedroom. We can hear the sound in the 5th wheel as well as in the pass-through storage. Any ideas on what could be causing this? We never noticed this sound on our TT. This coach does have a residential fridge that sits farther back in the living space, but the sound is not coming from the fridge.
|
wing_zealot
East of the Mississippi
Senior Member
Joined: 12/31/2007
View Profile
Offline
|
More than likely the fan on your converter. The hum will change depending on the load on the converter at any particular point in time.
|
RobWNY
Jamestown, NY
Senior Member
Joined: 02/28/2014
View Profile
Good Sam RV Club Member
|
It could be a number of things. I would check that your water pump isn't running constantly. Easy to check. If it's on, turn it off. If the humming stops, that's the issue. It could also be the converter fan. Unplug from campground power and undo the battery disconnect. If the humming stops, it's the converter cooling fan making the noise. It could also be the fireplace motor. To check this, turn it off. If the noise stops, that's the culprit.
2020 Silverado 2500HD LT, CC, 4X4 6.6 Duramax
2021 Grand Design Reflection 311BHS
I asked him to do one thing and he didn't do any of them.
|
the bear II
Torrance CA.
Senior Member
Joined: 02/14/2008
View Profile
Offline
|
Your 5th wheel is happy that you bought it and taking it on a trip....
|
DrewE
Vermont
Senior Member
Joined: 08/23/2014
View Profile
Offline
|
I'd also suspect the converter. If you have a ferroresonant converter (somewhat doubtful with that new of an RV, I'd think), they can hum quite distinctively all the time if the transformer or its windings are at all loose. It's not a problem beyond the possible annoyance. Other converters can also make various noises from fans and such.
|
|
|
mrad
Prineton, MN
Senior Member
Joined: 08/23/2007
View Profile
Offline
|
I know it's not the water pump. I wondered if it could be the converter (Xantrex Pro XM1000). But even now sitting in my driveway, closed up and winterized, but still hooked to shore power, I am hearing the noise. Would this be normal? The residential fridge is still on.
|
Old-Biscuit
Verde Valley
Senior Member
Joined: 06/20/2009
View Profile
|
Xantrex Pro XM1000 is an 'INVERTER' used to inverter DC (from batteries) to AC for that residential fridge
'CONVERTER' used to converter AC from AC Source (shore/gen) to DC for the 12V System and maintaining/charging batteries
You could have BOTH...Inverter and Converter
If you unplug shore power then Converter will stop operating --- Converter Fan
Should stop as it is AC Powered
If you turn off Inverter....then it will stop
Inverter Manual
Determine which one is making the noise.
Humming could be 'Normal' or an indication of component failing
* This post was
edited 10/22/20 11:14am by Old-Biscuit *
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31
|
ford truck guy
Pennsylvania
Senior Member
Joined: 03/22/2008
View Profile
Good Sam RV Club Member
Offline
|
I have a Xantrex Inverter that is going bad... The internal transfer/bypass switch is sticking... While that was / is going on, it developed a humming sound as well..
ASSUMING that will all go away once I replace it
Me-Her-the kids
2020 Ford F350 SD 6.7
2020 Redwood 3991RD Garnet
|
way2roll
Wilmington NC
Senior Member
Joined: 10/05/2018
View Profile
Offline
|
The fan on my inverter is pretty loud. I turn it off if plugged in to shore power.
2020 F350 STX 6.7L Turbo Diesel
2020 FR Cedar Creek Silverback 29rw
|
12th Man Fan
Flower Mound , Texas
Senior Member
Joined: 03/05/2009
View Profile
Good Sam RV Club Member
|
If you are rigged for a generator then I would suspect the ATF(auto transfer switch).
2014 GMC Duramax 4X4 DRW Crew
2015 DRV Tradition
|
|
|
