Error Messages - Rinnai infinity 20-2021 Customer Operation & Installation Manual

ERROR MESSAGES
The Infinity 20 has the ability to check its own operation continuously. If a fault occurs
an Error Code will be displayed on the Digital Monitor of the Remote Controls. This
assists with diagnosing the fault, and may enable you to overcome a problem without a
service call.
Code
Displayed
Fault
RMlledy
NO IGNITION
Check gas is turned on
at water heater and gas
meter or cylinder.
FLAME FAILURE
Check gas is turned on at
water heater and gas
meter. Check that nothing
is obstructing the flue
outlet.
E3
COMBUSTION FAN
FAILURE
Service Call
ES
CIRCUIT SELF CHECK
FAILURE
Service Call
INCOMING WATER
TEMPERATURE
SENSOR FAULTY
Service Call
HZ
OUTLET WATER
TEMPERATURE
SENSOR FAULTY
Service Call
In all cases, you may be able to clear the Error Code simply by turning the hot water tap
OFF, then ON again. If this does not clear the Error Code, try pushing the [ON/OFF/
button OFF, then ON again. If the Error Code still remains, contact Rinnai or your nearest
service agent and arrange for a service call.
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