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alex hewitt
alex hewitt, Plumber and electrician
Category: Plumbing
Satisfied Customers: 108
Experience:  Corgi registered plumber, Nic/Eic registered electrician.
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My rinnai tankless water heater (gas) is not heating and flashes

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My rinnai tankless water heater (gas) is not heating and flashes code 12. What does this code mean?



Error 12 is Flame failure / Earth Leakage


Check gas valves and gas supply
Check flame rod.
Check earth wire lead.
Check remote control.


A service callout for your local operative



Customer: replied 7 years ago.
I'll check those. Where can I get a list of troublecodes?



Follow this link to the rinnai tech area


Hope this helps



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