Rinnai RU180iN, Installation And Operation Manual

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V53De Manual 27
Code Definition Remedy
02
No burner operation during freeze
protection mode
Service Call
10 Air Supply or Exhaust Blockage
Check that nothing is blocking the inlet or exhaust.
licensed
professional
only
Verify dip switches and programming parameters are set properly.
Check fan for blockage.
11
No Ignition
(heater not turning on)
Check that the gas is turned on at the water heater, gas meter, or cylinder.
If the system is propane, make sure that gas is in the tank.
Ensure appliance is properly grounded.
licensed
professional
only
Ensure gas type and pressure is correct.
Ensure gas line, meter, and/or regulator is sized properly.
Bleed all air from gas lines.
Verify dip switches and programming parameters are set properly.
Ensure igniter is operational.
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.
Check the ground wire for the PC board.
12 No Flame
Check that the gas is turned on at the water heater, gas meter, or cylinder.
Check for obstructions in the flue outlet.
If the system is propane, make sure that gas is in the tank.
licensed
professional
only
Ensure gas line, meter, and/or regulator is sized properly.
Ensure gas type and pressure is correct.
Bleed all air from gas lines.
Ensure condensation collar was installed properly.
Verify dip switches and programming parameters are set properly.
Check power supply for loose connections.
Check power supply for proper voltage and voltage drops.
Ensure flame rod wire is connected.
Check flame rod for carbon build - up.
Disconnect and reconnect all wiring harnesses on unit and PC board.
Check for DC shorts at components.
Check gas solenoid valves for open or short circuits.
Remove burner plate and inspect burner surface for condensation or debris.
Diagnostic Codes
Some of the checks below may need to be done by a licensed professional.
Call a licensed professional for any remedy that involves gas or electricity.
Call a licensed professional if you have any doubt or reservation about
performing the remedy yourself.
WARNING
This water heater is designed to display diagnostic codes. If there is a potential operation concern refer to the
code and remedy on the next page.
Front Panel Display Indications
- - Standby (power is supplied but there is no demand for hot water).
On Hot water is being supplied.
FL or FH Stands for Forced Low and Forced High combustion. Only seen during the gas pressure
setting procedure which is done when certain components are replaced.
Error code flashing The error code will stop flashing after the problem is corrected and the water heater
supplies hot water.
AVERTISSEMENT