Demand Rapid owner & installer guide 12949-B 02-19 |
7
Troubleshooting: Rinnai INFINITY error codes
troubleshooting with controllers or status monitor
Your Rinnai INFINITY has a self diagnostic capability. If a fault occurs, an error code will flash
on the status monitor (HD200 external and EF models) or on the digital controller (if fitted). This
assists with diagnosing the fault and may enable you to overcome a problem without a service call.
Please quote the code displayed when contacting Rinnai.
In some cases you may be able to clear the error code by turning the lower water valve off, wait 20
seconds, then on again.
Error
code
Fault
Possible solution
-
Noticeable reduction in water flow
Inlet water filter needs to be cleaned—service call.
03
Power interruption, water will not flow
when power is back on
Turn off all hot water taps and press On/Off (on the controller
twice)
10
Combustion fan current is too high. Unit
operates then stops.
Owner: Service call
Installer: Check blockage of air intake/flue outlet, and combustion
fan.
11
No ignition. Unit stops without flame
igniting.
Owner: Check gas is turned on at the water heater, gas meter, or
cylinder.
Installer: Check; gas supply, sparker unit, and gas valves.
12
Flame failure, earth leakage
Owner: Check gas is turned on at the water heater, gas meter, or
cylinder. Check there are no obstructions to the flue outlet.
Installer: Check; gas supply, flame rod, earth wire lead, and water
control.
14
Thermal fuse and/or OH switch
activated. Unit operates then stops.
Owner: Service call
Installer: Check thermal fuse and OH switch. If either are faulty
check the heater for damage, confirm gas type, pressure settings,
and test point pressures.
16
Over temperature warning. Unit
operates then stops.
Owner: Service call
Installer: Confirm gas type, pressure settings, and test point
pressures. Check; gas valves, water flow sensor and servo, and
HEX outlet temperature thermistor.
25
Condensate trap error
Check condensate drain for blockage
32
Outlet water temperature faulty
Owner: Service call
Installer: Check hot water outlet thermistor
33
Heat exchanger outlet sensor faulty
Owner: Service call
Installer: Check HEX thermistor
34
Air temperature sensor faulty (internal
models only)
Service call. Will require; checking sensor wiring for damage,
measuring sensor resistance, checking combustion fan, checking
internal flue leakage, checking flue system integrity, and possibly
replacing the sensor
52
Modulating solenoid valve fault. Unit
stops without flame ignition.
Owner: Service call
Installer: Check modulating solenoid valve
61
Combustion fan failure
Owner: Service call. Installer: Check combustion fan.
65
Water flow control error. Water flow is
not controlled. Water temperature too
low.
Owner: Service call.
Installer: Check water flow servo.
71
Solenoid valve circuit error. Unit does
not operate.
Owner: Service call.
Installer: Check gas valves
72
Flame rod circuit error. Unit does not
operate.
Owner: Service call.
Installer: Check flame rod
LC
Scale buildup in heat exchanger—when
checking maintenance code history, 00
is substituted for LC
Service call
