Troubleshooting - Rinnai REU-VR3237WG Operation & Installation Manual

Your Rinnai Continuous Flow water heaters has a self diagnostic capability. If a fault occurs, an Error
Code will flash on the digital monitor or status monitor* if you have water controllers. 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. *Status Monitor available on INFINITY 26 Plus
(REU-VRM2630WD), HD250e and HD200e HD200i models only.
ERROR
-
Noticeable reduction in water flow.
Power interruption during Bath fill
03
(Water will not flow on power reinstatement).
10 Air intake or flue blocked.
11 No ignition / No gas supply.
12 Flame Failure / Low gas flow.
14 Remaining Flame Safety Device.
16 Over Temperature Warning.
32 Outgoing Water Temperature Sensor Faulty.
33 Heat Exchanger Outlet Sensor Faulty.
34 Combustion Air Temperature Sensor Faulty.
52 Gas Modulating Valve Faulty.
61 Combustion Fan Failure.
Water Flow Control Faulty
65
(Does not stop flow properly).
71
72
LC Scale build-up inside the heat exchanger.
In all cases, you may be able to clear the Error Code simply by turning the hot water tap OFF, then ON again. If this does not clear the Error Code,
try pushing the On/Off button OFF, then ON again. If the Error Code still remains, contact Rinnai for advice.
Troubleshooting Without Controllers
If you have no water controllers and experience the following symptoms, carry out these suggestions.
If the symptom continues, contact Rinnai for advice.
FAULT
The unit does not attempt to start at all.
The unit starts then shuts down immediately.
The unit starts then the water goes cold.
Faults caused by insufficient gas supply, insufficient water supply, gas quality,
water quality, installation errors or operation errors are not covered by the Rinnai
NOTE
warranty. Refer to the warranty card for details.
Rinnai Australia

TROUBLESHOOTING

FAULT
Micro-processor Failure.
Micro-processor Failure.
16
REMEDY
Inlet water filter needs to be cleaned. Service call.
Turn off all hot water taps. Press On/Off twice.
Service Call.
Check gas is turned on at water heater and gas meter
or cylinder.
Check gas is turned on at water heater
and gas meter or cylinder.
Check there are no obstructions to the flue outlet.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
REMEDY
Check the power is on at the unit.
Check the isolation valves at the unit are open.
Check the power is still on.
Check the gas isolation valves at the
unit and the gas meter are fully open.
Open your hot water tap fully.
Check the power is still on.
Open your hot water tap further.
Operation Manual