Fault Codes - Rinnai Energysaver ES38 Owner's Operation And Installation 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.
CODE DISPLAYED
11
14
16
31
32
33
34
49
53
61
70
71
72
73
99
[1] 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.
[2] 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.
FAULT
Ignition Failure
Overheat
Room Overheat
Room Temperature Sensor
Disconnection (open circuit)
Room Temperature Sensor
short circuit
Overheat Temperature Sensor
Disconnection (open circuit)
Overheat Temperature Sensor
short circuit
Sensor Breakdown
Sparker Failure
Combustion Fan Failure
Faulty ON/OFF Switch or
Faulty "Set Back" Switch
Faulty Solenoids
Faulty Flame Rod
Communication Error
Flue Block
Rinnai Corporation ES38 Manual
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.
Check that gas is turned ON.
Check that the vent termination is not
Refer to the Restart Function explanation.
Service call if repeated.
Service call if repeated. [1]
Lower room temperature to less than 104°F
Turn heater OFF, then ON again.
Check around the flue terminal for blockage.
REMEDY
blocked.
Clean filter.
(40°C).
Service call.
[2]
13