Its funny that most of the major tankless companies dont have canadian version of their websites… Canada is a very natural gas dependant country and thus we have this service in the majority of our homes. You would think that a market of 30 million plus might foster a small investment in a geocentric Canadian content specific website. 
Tankless manufactures know that the further north their product is installed the colder the ground water and the more energy is needed to heat the water up to acceptable temperatures. For the most part all of the major tankless companies have successfully overcome this issue. They certainly should work on advertising and showcasing thier advancements. Canadian tankless manufacture websites would go a long way.
Tankless Manufactures with Canadian Sites
- Rinnai – Rinnai.ca
- John Wood – johnwoodwaterheaters.com (honourable mention for haveing a french version)
Tankless Manufactures Without a Canadian Site
- Bosch
- GSW
- John Wood
- Navien
- Noritz
- Paloma
- Takagi
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Here are a list of Common Errors on the Rinnai Tankless Water heater.
| Code |
Fault |
Remedy |
| 02 |
No burner operation during
freeze protection mode |
Service Call |
| 03 |
Power interruption during
Bath Fill (Water will not flow
when power returns). |
Turn off all hot water taps. Press ON/OFF twice. |
| 10 |
Air Supply or Exhaust
Blockage |
Ensure Rinnai approved venting materials are being used.
Check that nothing is blocking the flue inlet or exhaust of Rinnai.
Check all vent components for proper connections.
Ensure vent length is within limits.
Ensure condensation collar was installed correctly.
Verify dip switches are set properly.
Check fan for blockage.
|
| 11 |
No Ignition |
Check that the gas is turned on at the water heater, gas meter, or cylinder.
Ensure gas type and pressure is correct.
Ensure gas line, meter, and/or regulator is sized properly.
Bleed all air from gas lines on Rinnai.
Verify dip switches are set properly.
Ensure Rinnai is properly grounded.
Disconnect EZConnect™ or MSA controls to isolate the problem.
Ensure igniter is operational on Rinnai.
Check igniter wiring harness for damage.
Check gas solenoid valves for open or short circuits.
Remove burner cover and ensure all burners are properly seated.
Remove burner plate and inspect burner surface for condensation or debris.
|
| 12 |
Flame Failure |
Check that the gas is turned on at the water heater and gas meter. Check for obstructions in
the flue outlet.
Ensure gas line, meter, and/or regulator is sized properly.
Ensure gas type and pressure is correct.
Bleed all air from gas lines on Rinnai.
Ensure proper Rinnai venting material was installed.
Ensure condensation collar was installed properly.
Ensure vent length is within limits.
Verify dip switches are set properly.
Ensure appliance is properly grounded.
Disconnect keypad on Rinnai.
Disconnect EZConnect™ or MSA controls to isolate the problem.
Check power supply for loose connections.
Check power supply for proper voltage and voltage drops.
Ensure flame rod wire is connected on Rinnai.
Check flame rod for carbon build-up.
Disconnect and reconnect all wiring harnesses on unit and PC board.
Check for DC shorts at components on Rinnai.
Check gas solenoid valves for open or short circuits.
Remove burner plate and inspect burner surface for condensation or debris.
|
| 16 |
Over Temperature Warning |
Check for restrictions in air flow around unit and vent terminal.
Check for low water flow in a circulating system causing short-cycling.
Check for foreign materials in combustion chamber and/or exhaust piping.
Check for clogged heat exchanger on Rinnai.
|
| 32 |
Outgoing Water Temperature
Sensor Fault |
Check sensor wiring for damage.
Measure resistance of sensor.
Clean sensor of scale build-up.
Replace sensor on Rinnai.
|
| 33 |
Heat Exchanger Outgoing
Temperature Sensor Fault |
Check sensor wiring for damage.
Measure resistance of sensor.
Clean sensor of scale build-up.
Replace sensor on Rinnai.
|
| 34 |
Combustion Air Temperature
Sensor Fault |
Check for restrictions in air flow around unit and vent terminal.
Check sensor wiring for damage.
Measure resistance of sensor.
Clean sensor of scale build-up.
Ensure fan blade is tight on motor shaft and is in good condition.
Replace sensor on Rinnai. |
| 52 |
Modulating Solenoid Valve
Signal Abnormal |
Check modulating gas solenoid valve wiring harness for loose or damaged terminals.
Measure resistance of valve coil on Rinnai.
|
| 61 |
Combustion Fan Failure |
Ensure fan will turn freely on Rinnai.
Check wiring harness to motor for damaged and/or loose connections.
Measure resistance of motor winding.
|
| 65 |
Water Flow Control Fault |
The water flow control valve has failed to close during the bath fill function. Immediately
turn off the water and discontinue the bath fill function. Contact a state qualified or
licensed contractor to service the appliance.
|
| 71 |
SV0, SV1, SV2, and SV3
Solenoid Valve Circuit Fault |
Check wiring harness to all solenoids for damage and/or loose connections.
Measure resistance of each solenoid valve coil.
|
| 72 |
Flame Sensing Device Fault |
Ensure flame rod is touching flame when unit fires.
Check all wiring to flame rod for damage.
Remove flame rod and check for carbon build-up; clean with sand paper.
Check inside burner chamber for any foreign material blocking flame at flame rod.
Measure micro amp output of sensor circuit with flame present.
Replace flame rod on Rinnai.
|
| LC |
Scale Build-up in Heat
Exchanger (when checking
maintenance code history,
“00” is substituted for “LC”) |
Flush heat exchanger. Refer to instructions in manual.
Replace heat exchanger.
NOTE: The LC code is the only error code that will allow the unit to keep running. The
display will alternate between the LC code and the temperature setting. The controller
will continue to beep. The LC code will reset if power is turned off and then on. |
| No code |
Nothing happens when water
flow is activated. |
Clean inlet water supply filter on Rinnai.
On new installations ensure hot and cold water lines are not reversed.
Check for bleed over. Isolate unit from building by turning off hot water line to building.
Isolate the circulating system if present. Open your pressure relief valve; if water is
flowing, there is bleed over in your plumbing.
Ensure you have at least the minimum flow rate required to fire unit.
Ensure turbine spins freely on Rinnai.
Measure the resistance of the water flow control sensor.
Check for DC shorts at components.
|
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