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Prhodes · 10-30-2019, 07:07 PM

2020 keystone cougar 29rbd
I have two 30gallon tanks on this unit. When I switched tanks today by turning the selector switch on the gauge it started to hummmmm. It quits when I turn it back to the other tank. What could be causing this humming?

10-30-2019, 07:07 PM	#1
Prhodes Junior Member Join Date: Sep 2019 Location: Jackson Posts: 27	Propane Tank Humming noise 2020 keystone cougar 29rbd I have two 30gallon tanks on this unit. When I switched tanks today by turning the selector switch on the gauge it started to hummmmm. It quits when I turn it back to the other tank. What could be causing this humming?