Rinnai ENERGYSAVER RHFE-308FTR Service Manual page 37

Before contacting Rinnai, please check the following points. These points are part of the normal operation of the unit.
At Ignition
Heater does not operate.
Warm air does not flow when the burner lights.
Smoke or strange smells are produced on the first trial
light up after installation.
Sharp clicking noises at ignition, or when the unit cuts
down on the thermostat, or goes out.
During Combustion
Clunking noise when the thermostat operates.
Unit is not heating room?
Air filter or louvres are blocked or obstructed.
Heater will not reignite after overheating.
When the Unit is Turned Off
Convection fan continues to run after turning off.
Other Points
Steam is discharged from the flue terminal.
Unit cuts off without apparent reason.
Power failure.
Remote control does not operate.
Energysaver RHFE-308FTR
Is the heater plugged in? Is there a power failure?
Have the fuse or breaker blown at the switchboard?
Are the air filter, flue, or warm air outlet blocked?
Are Timers set? Clear Timers and operate again.
Is the central timer on? (where fitted)
The fan is started automatically after a short delay.
This is to allow the heat exchanger to warm up.
This is caused by grease or oil and dust on the heat
exchanger and will stop after a short time.
This is simply expansion noise from the heat exchanger.
This is the sound of the solenoid gas valves.
Is the air filter or warm air outlet blocked?
Is the set temperature high enough?
Are the doors and windows of the room closed?
Allow heater to cool, clean air filter, operate again.
Heater does not reignite. Repair is necessary.
This is to remove the residual heat from the heat exchanger,
the fan will stop when the heater cools down.
High efficiency appliances tend to discharge water vapour
on cold days, this is normal.
Check is central timer is switched off (where fitted), or
whether filters are blocked, (dirty filters will cause the
heater to overheat).
When power is restored, the appliance will begin to heat if it
was on at the time of power failure. Clock will be delayed by
the length of the power failure.
Check battery. Try moving closer to the heater.
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