Rinnai RV53E, RV53I Error Codes, Front Panel Display Indications, Error Code Table, Fault, Remedy

Error Codes

The Rinnai water heater has the ability to check its own operation continuously. If a fault occurs, an error code will flash on the display in the front panel and on the temperature controller if installed. This assists with diagnosing the fault and may enable you to overcome a problem without a service call. Please identify the code displayed when inquiring about service.

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.

Error Code Table

Code	Fault	Remedy
02	No burner operation during	Service Call
	freeze protection mode
03	Power interruption during	Turn off all hot water taps. Press ON/OFF twice.
	Bath Fill (Water will not flow
	when power returns).
10	Air Supply or Exhaust	(RV53i only) Ensure Rinnai approved venting materials are being used.
	Blockage	(RV53i only) Check all vent components for proper connections.
		(RV53i only) Ensure vent length is within limits.
		(RV53i only) Ensure condensation collar was installed correctly.
		Check that nothing is blocking the inlet or exhaust.
		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.
		Verify dip switches are set properly.
		Ensure appliance is properly grounded.
		Disconnect EZConnect™ or MSA controls to isolate the problem.
		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.
12	Flame Failure	Check that the gas is turned on at the water	Disconnect EZConnect™ or MSA controls
		heater and gas meter. Check for	to isolate the problem.
		obstructions in the flue outlet.	Check power supply for loose connections.
		Ensure gas line, meter, and/or regulator is	Check power supply for proper voltage and
		sized properly.	voltage drops.
		Ensure gas type and pressure is correct.	Ensure flame rod wire is connected.
		Bleed all air from gas lines.	Check flame rod for carbon build-up.
		Ensure proper Rinnai venting material was	Disconnect and reconnect all wiring
		installed.	harnesses on unit and PC board.
		Ensure condensation collar was installed	Check for DC shorts at components.
		properly.	Check gas solenoid valves for open or short
		Ensure vent length is within limits.	circuits.
		Verify dip switches are set properly.	Remove burner plate and inspect burner
		Ensure appliance is properly grounded.	surface for condensation or debris.
		Disconnect keypad.	Check the ground wire for the PC board.
10	RV53i & RV53e Operation and Installation Manual