Display Diagnostic Codes; Reset Diagnostic Codes; Diagnostic Codes - Rinnai I Series Installation And Operation Manual

Some of the checks below
WARNING
should be performed by a
licensed professional. Consumers should never
attempt any action that they are not qualified to
perform.

Display Diagnostic Codes

To display diagnostic codes, follow the steps below.
1. Press and hold the Domestic Hot Water button for
two seconds, and then the
both buttons at the same time).
2. The last nine maintenance codes display and flash
one after the other.
3. To exit diagnostic codes and return the boiler to
normal operation, press and hold the Domestic
Hot Water button for two seconds, and then the
(Up) button (hold both buttons at the same time).

Reset Diagnostic Codes

To reset diagnostic codes, either the Central Heating or
Domestic Hot Water button on the control panel will
be blinking. Press the button to reset the code.
IMPORTANT
•
Diagnostic codes that occur during DHW
operation may be able to reset by turning off the
faucet.
•
Some diagnostic codes may not reset by pressing
the CH or DHW buttons. If this is the case,
contact your service provider for troubleshooting
assistance.
e:100
100
(Up) button (hold
1:100
* See "Electrical
Diagnostics" on
Technical Data Sheet
located on inside front
cover of boiler.

Diagnostic Codes

Air Supply or Exhaust Blockage/Condensate
100
Trap is Full
•
Fan current initial check error.
•
Ensure condensate line and trap is not
blocked.
•
Ensure internal air filter is clean with no
obstructions.
•
Ensure high altitude setting is set properly
(See High Altitude Setting).
•
Ensure combustion air and exhaust vents
are not blocked and the approved venting
materials are being used.
•
Ensure either the exhaust ring or intake
cap is removed properly.
•
Ensure vent length is within limits.
•
Check fan for debris and ensure wheel
turns freely.
•
Verify fan check valve is not stuck
between fan casing and burner body.
110 No Ignition (Unit Not Turning On)
•
Ignition Error.
•
Check that the gas is turned on at the
boiler, gas meter, and/or propane
cylinder.
•
If the unit is installed in a propane system,
ensure that gas is in the tank.
•
Bleed all air from the gas lines.
•
Check the ground wire for the PC Board.
•
Ensure the flame rod wire is connected.
•
Ensure the igniter is operational.*
•
Ensure the venting is installed in
accordance to this manual.
•
Check that the surface of the electrode
and flame rod are clean.
•
Check gas solenoid valves for open or
short circuits.*
•
Verify gas orifice installed is correct for the
gas system the unit is installed in.
•
Check flame rod voltage to ground during
ignition.
Flame Failure
120
•
Boiler has flame failure.
•
Check that the gas is turned on at the
boiler, gas meter, and/or propane
cylinder.
•
If the unit is installed in a propane system,
ensure that gas is in the tank.
•
Ensure the venting is installed in
accordance to this manual.
•
Ensure the flame rod wire is connected.
•
Ensure the gas type and inlet gas pressure
are correct.
•
Bleed all air from the gas lines.
•
Check the ground wire to the PC Board.
•
Check flame rod voltage to ground during
ignition.
Rinnai I-Series Condensing Boiler Combi Manual