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Troubleshooting
Check the following information before making a service call. If you are still unsure or concerned
after reading this section, please contact Rinnai.
Using the heater for the first time, or after a long period of non use
The heater may not start the first time it is operated due to air in the gas pipes. If ignition does not
occur within approximately one minute the heater will attempt to start again. If it does not start the
unit will switch itself off automatically—this is a safety feature. Try switching the heater back on if
this occurs.
What's happening
Warm air not coming from the heater when it
starts.
Smoke or strange smells coming from the
heater after it has been installed.
Clicking noises when the heater starts or
stops, or changes to a higher or lower setting.
Clunking noise when the thermostat operates.
Fan continues to run after the heater is turned
off.
Timer(s) do not operate at the set time.
Smell of gas.
Heater doesn't start.
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Explanation and/or possible solution
The heater's fan will start automatically after
a short delay. This is to allow the appliance to
warm up and to stop cold draughts.
This is caused by grease, oil, or dust within the
appliance. It will stop after a short time.
This is the expansion and contraction of
the heat exchanger and is a normal part of
operation.
This is the sound of the gas valve opening
and closing to regulate the flow of gas and is a
normal part of operation.
This is to remove the heat from the appliance
and will stop once the heater has cooled down.
Check the timers are set correctly as they may
be inactivated or incorrectly programmed.
There may be a small leak in the appliance.
Turn the heater off and contact Rinnai.
Check power cord is plugged in properly.
Check the lock isn't on.
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