shugarhi
New Member
Hi I have a Rinnai RUCS75I tankless water heater - about 7 years old. When I run the washer machine on the hot cycle it makes a really loud noise (see video), also when I constrict the intake air it seems to be less noisy. This noise only seems to happen when I run the washer machine, faucet or shower doesnt get loud. I last did the vinegar flush 2 years ago. I also have a water softener, so I dont think there is much calcium buildup. Any suggestions on what/if there is something wrong with my water heater?
Thank you,
Jeff
Thank you,
Jeff
