Rinnai RHFE-263FAII - Manual (Page 13)

Fault Codes
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
CODE DISPLAYED FAULT REMEDY
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.