Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.

Rinnai R53 Contoller - not working

Hello,
New here and very much of a novice. I appreciate any leads the forum provides.
There are no lights coming on the Rinnai controller and thus no error codes. Unit is plugged in and outlet has been tested.

Comments

  • SlimpickinsSlimpickins Member Posts: 322
    Is the unit working? It doesn't need the controller to work. The water servo may have a short thus taking out the display. You can try unplugging the servo and see if display comes back and if it does, replace the water flow control valve. The terminals for control should have 10-13 VDC, if it does, your control is bad.
  • debedodebedo Member Posts: 1
    Hi I also have a Rinnai 53 that my controller has stopped working. No way to check error codes. It is hard wired, nit plugged into outlet. I reset all the electrical fuses& reset theGFR in garage outlets. Still does not work . I have no hot water... Any ideas?
  • JackJack Member Posts: 1,044
    You have inline fuses on the power supply to the unit. Check them.
    kcopp
  • jaybrajaybra Member Posts: 3
    So I have the same problem with my r53...no control display.
    Power is good through the transformer to the board then nothing.
    Should I assume the confuser in bad or is there something else on this space ship I should check first?
    Cheers
  • conkconk Member Posts: 1
    Hi!

    I am having the same issue. Is the fuse the fix? Anything else i should check? I followed the exact same steps as debedo.

    Any input would be greatly appreciated!

    Will
Sign In or Register to comment.

Welcome

It looks like you're new here. If you want to get involved, click one of these buttons!