ERROR MESSAGES
Rinnai water heaters have the ability to check their own operation continuously. If a fault occurs, an error code will flash on the Digital Display if you have temperature controllers installed. This assists with diagnosing the fault, and may enable you to overcome a problem without a service call. Please quote the code displayed when enquiring about service. Error codes flash.
Code | Fault | Remedy |
Displayed |
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- | Noticeable reduction in water | Inlet water filter needs to be cleaned. |
| flow |
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10 | Not enough combustion air | Check for physical blockages around |
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| air intake or exhaust. Check |
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| combustion fan. |
11 | No Ignition / Gas supply | Check gas valves, gas supply and |
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| sparker unit. |
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12 | Flame failure / Low Gas flow | Check gas valves and gas supply. |
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| Check flame rod. |
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| Check exhaust is clear. |
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| Check remote control. |
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14 | Remaining flame safety device | Service Call |
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16 | Over temperature warning | Service Call |
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32 | Outgoing water temperature | Service Call |
| sensor faulty |
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33 | Heat Exchanger Thermistor | Service Call |
| Error |
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52 | Gas modulating valve faulty | Service Call |
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61 | Combustion fan failure | Service Call |
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65 | Water Flow Control Device | Service Call |
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71 | Service Call | |
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72 | Flame rod circuit error | Service Call |
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90 | Fan Failure | Service Call |
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*In all cases, you may be able to clear the Error code by turning the hot water tap OFF, then ON again. If this does not clear the error, try pushing the On/Off button OFF then ON again. If the Error Code still remains contact Rinnai or your nearest service agent for advice.
**Faults caused by insufficient gas/water supply or gas/water quality and installation errors are not covered by the manufacturer’s guarantee.
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