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Marc
Marc, Plumber
Category: Plumbing
Satisfied Customers: 1126
Experience:  Plumbing heating & home maintenance contractor
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I have a rinnai outside tankless water heater. I need to

Customer Question

I have a rinnai outside tankless water heater. I need to flush the system.where is the power turn off.it doesn't have an electrical plug in cord.I'm a widow and have been watching you tube videos. On the inside of my house there is a was temp regulator with an on off button could this be it.
Submitted: 1 month ago.
Category: Plumbing
Expert:  WCohn replied 1 month ago.

Hello my name is ***** ***** I am a Rinnai factory trained and certified repair technician. You do NOT want the unit turned off when you flush it. Having the power ON will allow the servo valve to be open while you flush it.