2019 Montana High Country 5th wheelThere has been a variable whine sound coming from propane tank area for some time, either side whichever is in service, various tank levels. It is totally random, might not hear it for days, then it's on for a day or so. Last time leaving, the sound was happening, and I switched the battery disconnect and it stopped. I did not mean to as I wanted to leave the fridge on this time. Switched back and the sound renewed.So now I know it is related to the fridge, of which I have had issues with for 2 years, on 2nd new cooling unit. Was operating reasonably well recently in cooler weather. Dometic RM1350Thoughts?

What kind of sound? Clicking or scrapping like something in one of the fans?

Probably the LP regulator. Replace it. DougIt makes the noise because LP is being drawn thru it and there is a problem with the rubber diaphragm.

enblethen wrote:What kind of sound? Clicking or scrapping like something in one of the fans?Quote from OP: "variable whine sound coming from propane tank area"

dougrainer wrote:Probably the LP regulator. Replace it. DougIt makes the noise because LP is being drawn thru it and there is a problem with the rubber diaphragm.X2

Propane whine noise would not disappear when DC is disconnected. It would if thew rig is equipped with solenoid to shut flow of propane. Solenoid is located near regulator.It would be more noticeable to be fan. Fans start to make noises as they begin to fail. Would have to move around outside the rig to isolate.

Gas regulator issue, or Fridge? | Good Sam Community

Boon_Docker
Explorer III
Sep 01, 2021
enblethen wrote:
Propane whine noise would not disappear when DC is disconnected. It would if thew rig is equipped with solenoid to shut flow of propane. Solenoid is located near regulator.
It would be more noticeable to be fan. Fans start to make noises as they begin to fail. Would have to move around outside the rig to isolate.

Yes it would. When the fridge stopped operating because the 12v was shut off to the circuit board causing the propane to stop flowing to it.
enblethen
Nomad
Sep 01, 2021
Propane whine noise would not disappear when DC is disconnected. It would if thew rig is equipped with solenoid to shut flow of propane. Solenoid is located near regulator.
It would be more noticeable to be fan. Fans start to make noises as they begin to fail. Would have to move around outside the rig to isolate.
Boon_Docker
Explorer III
Sep 01, 2021
dougrainer wrote:
Probably the LP regulator. Replace it. Doug

It makes the noise because LP is being drawn thru it and there is a problem with the rubber diaphragm.

X2
Boon_Docker
Explorer III
Sep 01, 2021
enblethen wrote:
What kind of sound? Clicking or scrapping like something in one of the fans?

Quote from OP:

"variable whine sound coming from propane tank area"
dougrainer
Nomad
Sep 01, 2021
Probably the LP regulator. Replace it. Doug

It makes the noise because LP is being drawn thru it and there is a problem with the rubber diaphragm.
enblethen
Nomad
Sep 01, 2021
What kind of sound? Clicking or scrapping like something in one of the fans?

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Gas regulator issue, or Fridge?

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