Rinnai RHFE-263FAII User Manual

  Fault 

If there is a malfunction the appliance may shut down 
as a safety precaution and display a fault code to 
assist in diagnosing the problem.  The fault code will 
flash in the display on the control panel.  When 
making a service call, this code will assist with 
diagnosing the fault.  

You may be able to clear the fault code by turning the 
heater off and then on again.  If the fault code remains 
or returns on the next operation, contact Rinnai or 
your nearest service agent and arrange for a service 
call. 

Rinnai Corporation RHFE-263FA

13

Ignition failure

Flame failure

Overheat

Room overheat

Room Temperature

Sensor faulty

Overheat Temperature

Sensor faulty

Sparker failure

Combustion fan failure

Faulty ON/OFF switch

Faulty solenoids 

Faulty Flame Rod

Communication Error

Check gas is turned ON.

Service call if repeated.

Check gas is turned ON.

Service call if repeated.

Clean filter

Service call if repeated. [1]

Service call.

Service call.

Service call.

Service call.

Service call.

Service call.

Service call.

Turn heater OFF, 

then ON again.

Lower room temperature

to less than 104

°F(40°C).

Flue block

Check around flue terminal [2]

11

12

14

16

31

32

33

34

53

61

70

71

72

73

49

99

Sensor breakdown

Service Call.

[1] Remove any obstructions.  The flue needs to be kept clear to expel exhaust gases.  If the appliance fails to 

operate contact a qualified service agency. 

[2] If the fusible link needs replacement, it must be done by a qualified service agency.  In addition, the cause of 

the overheat needs to be determined.  The fusible link is a one use safety device that breaks to shut off the
appliance.