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Rinnai R85e blew fuses and is now dead
We returned home yesterday from a weekend trip to find one of my Rinnai R85e water heaters not working. The control pad was dead so I took the front cover off of the unit and found both 3 amp fuses had blown. I replaced both fuses ( I did check continuity on the new fuses) and the unit still does nothing. It did not blow the new fuses. I checked to make sure it has correct incoming ac voltage and it does. I though maybe the control pad had gone out as well so i replaced it with a new spare I had but still nothing. Maybe the PCB has died? Any help would be greatly appreciated.