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Marc, Plumber
Category: Plumbing
Satisfied Customers: 1126
Experience:  Plumbing heating & home maintenance contractor
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Had a rinnai rl75i installed in residence on 9?17/15. since

Customer Question

had a rinnai rl75i installed in residence on 9?17/15. since beginning, water runs hot, then cold then stays cold. installer not familiar with tankless.
what item should I look at to replace.?
Submitted: 1 year ago.
Category: Plumbing
Expert:  Daniel Plourde replied 1 year ago.

hi i am dan i can help you with this. first of all it is probally not a part to replace. it most likely has to do with the installation, especially if the installer doesn't know about on demand heaters. if you can provide a picture of the heater installed and the piping that would help alot. also do you get any error code when it starts running cold?

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