Can a tankless water heater freeze up?

Water heaters can fall prey to his icy wrath too if proper precautions are not taken. Freeze damage to tankless water heaters usually takes the form of standing water inside the unit turning into ice, expanding and damaging the internal components.

Where are the error codes on my Rinnai tankless water heater?

The previous nine error codes are stored in memory. To access these codes, hold the ON/OFF button for two seconds and simultaneously press the UP arrow. Have a different tankless water heater brand that needs troubleshooting?

What does the error code 00 on Rinnai mean?

Rinnai error code 00 (or LC0, LC1, LC2, LC3, LC4, LC5, LC6, LC7, LC8, and LC9) indicates there has been scale build-up in the heat exchanger. To fix this error code, you need to flush the heat exchanger.

What’s the Rinnai code for the heat exchanger?

To fix this error code, you need to flush the heat exchanger. If this does not work, you may need to replace the heat exchanger. Rinnai error code 00 will usually be replaced by LC code, followed by a number between 0 to 9 in the maintenance code history.

How does the Rinnai hydronic air handler system work?

Rinnai Vent-Free Convectors push heat to the farthest reaches of the room, evenly warming larger spaces and maximizing cost-savings. The Rinnai Hydronic Air Handler System easily integrates with select tankless water heaters or boilers to deliver energy-efficient warmth.

How does the Rinnai rur98 water heater work?

RUR98 models can work as the point-of-use units where a small amount of hot water is needed or as the whole-house unit when there is high demand. As the units are equipped with the modulating gas valve, the heater can automatically adjust the power when it is required.

The previous nine error codes are stored in memory. To access these codes, hold the ON/OFF button for two seconds and simultaneously press the UP arrow. Have a different tankless water heater brand that needs troubleshooting?

What to do if your Rinnai says error code 02?

The Rinnai error code 02 cannot be fixed by the user, and the only solution is to make a service call and have a certified technician inspect your Rinnai. If you live in an area with routine freezing winter temperatures, we’ve put together the article Maintaining Tankless Water Heaters in Freezing Temperatures.

What does the error code 15 on a Rinnai mean?

Rinnai error code 15 is found on units with venturi switches. If there is an error code 15 on your Rinnai, inspect the venturi motor’s condition, and replace the gas valve assembly. Reset the unit by completely turning it off from the power supply. Rinnai error code 16 represents an overheating warning.