Troubleshooting - Rinnai Arriva 752 Operation Manual

Troubleshooting

Check the following information before making a service call as some performance characteristics of
the Arriva are a normal part of operation. If you are still unsure or concerned after reading this section,
please contact Rinnai.
During installation there will be an initial burning in period where some smoke and smell may be
experienced. This is a normal part of the operation.
The appliance is fitted with an overheat safety switch. under overheating conditions this switch will
shut off the appliance. If the appliance shuts off repeatedly servicing may be required.
Using the heater for the first time, or after a long period of non use
Ignition may not occur the first time it is operated due to air in the gas pipes. If ignition does not occur
within approximately one minute the appliance will attempt to re-light. If ignition does not occur the
unit will switch off automatically. Try operating the heater again if this occurs.
The heater may make noises after ignition or switching off. This is due to the expansion and contraction
of the internal components—this is normal. The heater will not ignite if the On/Off button is pressed
straight after the heater has turned off. It will take approximately 20 seconds before the unit will switch
on again.
Characteristic
when turning warm air does not start when the burner
on lights.
Smoke or strange smells are produced
when first operating the appliance after
installation.
Sharp clicking noises at ignition, or when
the unit thermostat modulates to a lower
or higher setting, or shuts down.
During Clunking noise when the thermostat
operation operates
when turning Fan continues to run after the heater is
off turned off.
Other Steam is discharged from the flue terminal
outside.
Heater doesn't start when the Standby/On
button is pushed (thermostat on high)
Timers Timer(s) do not operate at the set time
Timer operates for a short time then cuts
out
14 | Arriva 752 Operation Guide: 12219-A 01-12
Explanation
The fan starts automatically after a short delay.
This is to allow the appliance to warm up,
helping avoid cold draughts.
This is caused by grease, oil, or dust within the
appliance. This will stop after a short time.
This is 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.
This is to remove residual heat from within the
appliance. This stops once the unit cools down.
High efficiency appliances tend to discharge
water vapour on cold days—this is normal.
Check the appliance On/Off button is on. Check
timer(s). Timer programmes must be turned off
or overridden for manual operation.
They may be inactivated or incorrectly
programmed. Check timers are set correctly.
Room temperature may be higher than the set
temperature. Increase set temperature if desired.
Turn off the Extra Low button if on.