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

 

 

 

 

 

-

Noticeable reduction in water

Inlet water filter needs to be cleaned.

 

flow

 

 

 

 

10

Not enough combustion air

Check for physical blockages around

 

 

air intake or exhaust. Check

 

 

combustion fan.

11

No Ignition / Gas supply

Check gas valves, gas supply and

 

 

sparker unit.

 

 

 

12

Flame failure / Low Gas flow

Check gas valves and gas supply.

 

 

Check flame rod.

 

 

Check exhaust is clear.

 

 

Check remote control.

 

 

 

14

Remaining flame safety device

Service Call

 

 

 

16

Over temperature warning

Service Call

 

 

 

32

Outgoing water temperature

Service Call

 

sensor faulty

 

 

 

 

33

Heat Exchanger Thermistor

Service Call

 

Error

 

52

Gas modulating valve faulty

Service Call

 

 

 

61

Combustion fan failure

Service Call

 

 

 

65

Water Flow Control Device

Service Call

 

 

 

71

Micro-processor failure

Service Call

 

 

 

72

Flame rod circuit error

Service Call

 

 

 

90

Fan Failure

Service Call

 

 

 

*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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Rinnai 24e user manual Error Messages, Code Fault Remedy Displayed