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Old 09-16-2016, 12:19 AM   #1
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Join Date: Mar 2013
Location: White Rock BC
Posts: 384
Annoying vibration Girard Tankless Heater

I have a Gen 1 Girard Tankless water heater in a 28RKS Wildcat. For the most part I love the system ( once I figured out how to use it!). This season it has developed a very noisy vibration when the cooling fan kicks in . It's progressively less noisy as the water heats and then really noisy again when the flow stops until the fan stops. ( probably something to do with expansion)The fan is designed to run about 1 minute after the last water flow to cool off the heat exchanger ( I believe). I've done a fair bit of tinkering with it and can apply pressure here and there on the unit when the door us open and get it to stop vibrating but can't pinpoint where it's coming from. It really echoes into the kitchen area.Anyone have the issue or know a simple fix. I'm a fairly handy guy but this has me stumped.
Thanks in advance.
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Floyd & Carolyn
2012 F150 S/crew 4X4 6.2L 6Spd Tow Max Firestone airbags. 2011 28RKS Wildcat. Yamaha 3000iseb Gen.
2014 57 nights.2015 116 nights
2016 96 nights .2017 72 nights. 2018 157 nights
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