Installation Manual

100 Rinnai I-Series Condensing Boiler Solo Manual
120
Flame Failure
• Boiler has ame 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 venng is installed in
accordance to this manual.
• Ensure the ame 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 ame rod voltage to ground
during ignion.
140
Heat Exchanger Overheat
• Overheat switch is tripped.
• Measure the resistance of the Overheat
Switch.*
• Check the heat exchanger surface for
hot spots which may indicate blockage
due to scale buildup.
• Ensure the boiler pump is not locked up.
• Ensure that all of the valves in the CH
circuit are open.
• Ensure the boiler and CH circuit does not
have a freezing condion.
• The surface of the heat exchanger may
turn to a black color as stainless steel is
tempered even in normal condions.
This does not indicate an abnormal
condion.
• Check for damage on the exhaust, seal,
and venng.
• Ensure the parameter A0 corresponds to
the gas type the unit is installed in.
• Ensure the gas orice is the proper
orice for the gas type in use.
• Ensure deaeraon has been performed.
150 Venturi Control
• Venturi operaon error.
• Ensure the venturi motor is operang
correctly.*
• Replace the gas valve assembly.
170
Venturi Blockage
• Check the venturi and silencer for
blockage.
• Before reseng this error, check if the
condensate drain is block and if the
venng is connected properly.
* See “Electrical Diagnoscs” on Technical Data
Sheet located on inside front cover of boiler.
181
Indirect Tank Temperature
• Indirect tank runs for more than six hours
without cycling o.
• Ensure the tank size is adequate.
• Check the thermistor locaon.
• Ensure the system is plumbed properly.
• Check the supply temperature for tank is
higher than tank seng temperature
(Parameter 30).
• Check sensor wiring for damage.
• Measure resistance of sensor.*
• Replace sensor if necessary.
190
Electrical Grounding
• Secondary circuit ground fault.
• Check all electrical components for
electrical short.
250
Condensate Pump (Accessory)
• Boiler will operate for 60 seconds.
• Conrm wire connecons and harnesses
are good.
• Ensure the condensate reservoir is
empty and condensate pump is
operaonal.
310
Freeze Protecon Thermistor
• Check sensor wiring for damage.
• Measure the resistance of the sensor.
• Replace if necessary.
353
Supply Thermistor
• Check sensor wiring for damage.
• Clean the surface of the sensor.
• Measure the resistance of the sensor.
• Check the return thermistor.
• Replace if necessary.
371
Indirect Tank Thermistor
• Ensure DIP switch 4 is set to the
appropriate seng.
• Check sensor wiring for damage.
• Measure the resistance of the sensor.
• Replace if necessary.
380
Exhaust Thermistor
• Check sensor wiring for damage.
• Clean the surface of the sensor.
• Measure the resistance of the sensor.
• Check the return thermistor.
• Replace if necessary.