Fault codes – Rinnai ES38 User Manual
Page 12
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12
Rinnai Corporation ES38 Manual
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.
[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.
CODE DISPLAYED
FAULT
REMEDY
11 Ignition
Failure
Check that gas is turned ON.
Check that the vent termination is not
blocked.
Refer to the Restart Function explanation.
Service call if repeated.
14 Overheat
Clean filter.
Service call if repeated. [1]
16 Room
Overheat
Lower room temperature to less than 104°F
(40°C).
31
Room Temperature Sensor
Faulty
Service call.
32
33
Overheat Temperature Sensor
Faulty
Service call.
34
49 Sensor
Breakdown Service
call.
53 Sparker
Failure Service
call.
61
Combustion Fan Failure
Service call.
70
Faulty ON/OFF Switch
Service call.
71 Faulty
Solenoids Service
call.
72
Faulty Flame Rod
Service call.
73
Communication Error
Turn heater OFF, then ON again.
99 Flue
Block
Check around the flue terminal for blockage.
[2]