ERROR MESSAGES
Troubleshooting without controllers
If you have not installed temperature controllers and experience the following symptoms, please carry out the suggestions below. If symptoms continue, please contact Rinnai for advice.
Fault | Remedy |
|
|
Heater does not attempt | Check the power is on at the heater. |
to start at all. | Check the cold water valve supplying the heater is open. |
Heater starts then shuts | Check the power is on. |
down immediately. | Check the gas valve at the heater and at the gas meter is fully open. |
| Open the hot water tap fully. |
Heater starts then the | Check the power is on. |
water goes cold. | Open your hot water tap further or try another hot outlet. |
NOTE: Faults caused by insufficient gas/water supply or gas/water quality and installation errors are not covered by the manufacturer’s warranty.
Installations with circulation pumps
With temperature controller fitted.
If you have an installation using a secondary circulation pump this must be switched off so that there is no flow through the heater when starting or after a power failure. If the pump is running the unit will not operate (no display on the controller). Isolate pump then start heater before restarting pump. This is a safety feature.
The pump should also be fitted with a thermostat to prevent the return temperature reaching the heater set point temperature.
Without temperature controller fitted.
The heater should automatically reset and provide water at the temperature set by the internal limit switches.
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