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Rinnai RHFE-750ETRA User Manual

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Rinnai Corporation RHFE-750ETRA                                                           9 
Adjusting the Temperature 
Pressing the UP and DOWN buttons will change the 
temperature setting by 2 degree (F) 
increments.  The display will show 
“Temperature” and the new temperature as 
confirmation.   
The temperature can be set to: 
•  L (Low) - burner is on minimum 
combustion 
•  60° F - 80° F in two 
degree increments 
•  H (High) - burner is 
on maximum combustion 
To use Celsius scale, 
open the battery 
compartment and move 
the switch toward “0”.  
The temperatures 16-26° C are available in one 
degree increments.  To return to Fahrenheit scale 
move the switch toward “1”. 
Temperature
Lock
Clock
PM
Timer 1
Set
Set ON OFF
ON OFF
Timer 2 Set
OverrideAuto OffFlame
Flame Function
 
Press the FLAME button to control the flame 
level.  There are seven levels of flame 
available.   
The display will show the 
word “Flame” and a series 
of short bars (one for each 
flame level). 
Use the UP or DOWN 
buttons to select the 
desired flame level.   
Pressing the FLAME 
button again will allow the 
appliance to control the 
flame automatically. 
If the room temperature reaches 104° F (40° C) while 
the flame function is on then the appliance will turn off 
automatically as a safety precaution. 
The FLAME function is not available during TIMER 
operation. 
Temperature
Lock
Clock
AM
PM
Timer 1
Set
Set ON OFF
ON OFF
Timer 2 Set
Override
Time
Flame
Flame
Lock Function
 
Pressing the LOCK button will cause all 
functions of the remote control to be locked 
except for the STANDBY/ON button. 
The remote control 
display will show the word 
“Lock” in the top left 
corner. 
To cancel the Lock 
function press down and 
hold the LOCK button for 
3 seconds. 
Temperature
Lock
AM
PM
Override
Time
Lock
Auto Off Function
 
When the appliance is not in AUTO OFF 
mode and the room temperature reaches 
the temperature setting the appliance will 
reduce the gas flow and 
maintain the flame on 
the lowest flame level.  
The temperature may 
continue to rise even on 
this low setting.  If the 
temperature reaches 
104° F  (40° C) then the 
appliance will 
automatically shut down 
with fault code 16.   
When the temperature setting is reached while the 
appliance is in AUTO OFF mode, the gas flow will be 
reduced to pilot operation and the convection fan will 
run on low speed.  To enter this mode press the 
AUTO OFF button.  The words “Auto Off” will be 
displayed above the time.  To exit this mode press the 
AUTO OFF again. 
Whether this mode is on or off, the appliance will 
attempt to maintain the temperature setting. 
Temperature
Lock
Clock
AM
PM
Timer 1
Set
Set ON OFF
ON OFF
Timer 2 Set
Override
Auto Off
Time
Flame
Auto
Off
Obstruction of Warm Air Discharge
 
Obstructing the louvers for the warm air discharge will 
cause the appliance to operate inefficiently.   
When an obstruction is detected the Blockage 
Indicator LED above the Receiver Window will glow 
red and combustion reduces to front burner, low 
operation only. 
To restore normal operation, remove the obstruction, 
turn the appliance OFF and then ON. 
  Basic Fireplace Operations