- Find Plumbers In Your Area -

Get Free Plumbing Quotes!

Rinnai tankless - Make sure your switches are set correctly (Code 10)

by Code 10 Expert Now
(NC)

I have had a Rinnai tankless waterheater for 3 years in a vacation home (yes I said 3 years) and after 3 years of random code 10 errors and cold showers,innumerable Google searches and numerous repair person visits I finally figured out the problem. There is a little set of switches inside the cabinet on the lower right side that have to be set correctly by the installer. My home is over 4k feet in elevation...

That was one switch that wasn't flipped. The estimated lineal footage of vent pipe (elbow counts for several ft.) so they didn't have the second switch flipped for the amount of vent pipe I have. Both of these things impact airflow, therefore the unit wasn't working properly. The incompetence of the installer and repair folks is incredible... But finally my problem is solved.

I didn't want anyone else to experience the extreme level of failure by Rinnai and the repair folks I did so I wanted to share. Hope this helps.

Comments for Rinnai tankless - Make sure your switches are set correctly (Code 10)

Average Rating starstarstarstarstar

Click here to add your own comments

Dec 12, 2019
Rating
starstarstarstarstar
Rinnai Tankless - Code 10
by: Anonymous

We had this Code 10 error happen last night. We moved into a new construction 5 months ago and had no previous problems with lost hot water until last night. After a visit from a plumber, it turns out that when the outside part of the unit was installed, the drain plug was not removed! It took this long for this to cause problems and alert for drain blockage. The plumber simply removed the plug and the problem was solved.

Jan 06, 2017
Rating
starstarstarstarstar
Not Rinnai's fault
by: Anonymous

Don't blame Rinnai. All of the information you described with altitude and vent pipe length is right in the installation manual. Your installer should have known better. BTW the instruction manual also tells the installer to review the manual with the owner! Hmmm

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Rinnai Water Heater Review .

emergency plumber