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07-17-2017, 01:35 PM
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#1
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Seasoned Camper
Join Date: Mar 2014
Location: Livingston
Posts: 50
M.O.C. #14122
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Hot Water causing noticeable Hum
Hi Montana Owners, after 3 years owning our 2005 Montana 3400RL, we have just started to hear a noticeable hum when our hot water is turned on. We are not running propane currently because we are plugged into shore power. When we turn the water to cold the hum stops. There is no hum when the water is off. Might anyone else have experienced this same issue? Thank you. ~Brett
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07-17-2017, 01:59 PM
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#2
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Montana Master
Join Date: Apr 2017
Location: 1000 oaks
Posts: 953
M.O.C. #19630
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Does it hum when using every faucet or just one in particular?
__________________
2011 2955RL Gen-Y Executive Kingpin
2022 GMC 2500HD Duramax/Alison
4X4 Crew Cab/Standard bed.
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07-17-2017, 02:00 PM
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#3
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,697
M.O.C. #12947
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I have heard noise from our water heater for a long time. Everything is working properly, and I came to the conclusion that the noise is water boiling at the electric element. As soon as the water reaches temperature and the electric is off, the noise stops. When we are where we can we can only use gas, the noise does not exist.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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07-17-2017, 03:30 PM
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#4
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Montana Master
Join Date: May 2011
Location: Hixson
Posts: 3,436
M.O.C. #11397
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Probably the check-valve on the rear of the WH. Common problem.
__________________
2018.5 Montana 3791RD
Full Timers 9/1/2010 through 1/16/2020.
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07-17-2017, 04:52 PM
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#5
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Seasoned Camper
Join Date: Mar 2014
Location: Livingston
Posts: 50
M.O.C. #14122
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Quote:
Originally Posted by WeBeFulltime
Probably the check-valve on the rear of the WH. Common problem.
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The "check valve" that you say may be the problem... is there a DIY way to check that? Does it need replacing or adjusting?
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07-17-2017, 04:53 PM
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#6
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Seasoned Camper
Join Date: Mar 2014
Location: Livingston
Posts: 50
M.O.C. #14122
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Quote:
Originally Posted by prndl
Does it hum when using every faucet or just one in particular?
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The hum happens when the hot faucet is on in the kitchen or in the bathroom.
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07-17-2017, 05:21 PM
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#7
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Montana Fan
Join Date: May 2016
Location: Ishpeming
Posts: 214
M.O.C. #18650
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I get it on my bathroom faucet only
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07-17-2017, 06:27 PM
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#8
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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If it happens universally when the hot water is used then it's probably the check valve. Most likely it has something from the buildup that happens in the hot water heater getting caught and partually blocking the check valve(should wash the water heater out as well as possible at least annually and whenever the anode rod is replaced but it still can happen) if it is just in the shower it probably has to do with the shower head.
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07-17-2017, 06:33 PM
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#9
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Montana Fan
Join Date: May 2016
Location: Ishpeming
Posts: 214
M.O.C. #18650
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oddly mine started making noise after the check valve was replaced
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07-17-2017, 07:28 PM
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#10
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Montana Master
Join Date: Jun 2014
Location: Vancouver Island
Posts: 894
M.O.C. #14417
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This reminds me when I has posted on here that my GFCI was humming someone couldn't help themselves by asking what it was humming. ...lol
__________________
Lenny and Ros
2012 Montana 3400RL,680 Watts Solar,4xT-105 Trojans,GP-ISW2000-12 Inverter,Trimetric 2020, EMSHW50C
2009 Chevy Silverado 3500 LTZ Duramax 4x4 CC Dually, Banks Speed Brake
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