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 of the remote controller. 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.

Error Code Table

Error

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

Ensure Rinnai approved venting materials are being used.

 

 

Blockage

Check that nothing is blocking the flue inlet or exhaust.

 

 

 

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.

 

 

 

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 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.

 

 

 

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.

 

 

 

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.

 

 

 

Check flame rod for carbon build-up.

 

 

 

Disconnect and re-connect all wiring harnesses on unit and PC board.

 

 

 

Check all components for electrical short.

 

 

 

Check gas solenoid valves for open or short circuits.

 

 

 

Remove burner plate and inspect burner surface for condensation or debris.

 

 

 

 

 

 

 

VA Series Indoor LS Manual

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Rinnai REU-VA3237FFU installation manual Error Codes, Error Code Table, Error Fault Remedy
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REU-VA3237FFU specifications

The Rinnai REU-VA3237FFU is a high-efficiency gas continuous flow water heater designed to provide instant hot water on demand. It is particularly well-suited for households that require a reliable source of hot water while maximizing energy savings. This unit boasts impressive features that set it apart in the market, catering to both residential and commercial applications.

One of the standout characteristics of the REU-VA3237FFU is its energy-efficient design. With an impressive energy factor of 0.89, this model delivers exceptional performance, maximizing energy use and minimizing waste. The continuous flow technology means that there is virtually no wait time for hot water, making it ideal for busy households with multiple points of use.

The REU-VA3237FFU employs advanced temperature control technology. It features an intelligent digital controller that allows users to easily set their desired water temperature. This ensures consistent delivery of hot water at the desired temperature, enhancing comfort while also promoting safety by reducing the risk of scalding. The model also incorporates a safety lock function that can prevent accidental changes to the temperature setting.

In terms of durability and design, the Rinnai REU-VA3237FFU showcases high-quality build materials that contribute to its longevity. The stainless steel heat exchanger is resistant to corrosion, ensuring a long life expectancy and reliable performance over time. Additionally, the compact design makes it easy to install in tight spaces, whether indoors or outdoors, adapting to various installation environments.

Moreover, the Rinnai REU-VA3237FFU features a low NOx emission system, aligning with environmental standards and regulations. This eco-friendly technology makes it an excellent choice for environmentally conscious consumers looking to reduce their carbon footprint while enjoying the benefits of modern hot water systems.

The Rinnai REU-VA3237FFU is also equipped with a self-diagnostic system, which allows for easier maintenance and troubleshooting. This feature increases the unit's reliability by monitoring its performance and alerting users to any potential issues before they develop into significant problems.

In summary, the Rinnai REU-VA3237FFU is a standout continuous flow water heater that combines energy efficiency, durability, and advanced technology. With its smart temperature control, compact design, and environmentally friendly features, it is an outstanding choice for anyone seeking a dependable and efficient hot water solution.
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