Rinnai Tankless Water Heater Code 10 - Meaning, Causes, and Solutions

Rinnai Tankless Water Heater Code 10 - Meaning, Causes, and Solutions. In this video, we will be talking about how to a Rinnai Tankless Water Heater error code 10.
Rinnai tankless water heaters are specially built for commercial use and are known to be some of the most powerful in the game. With heavy use, however, these devices may show an error code 10 message, which is an indication of air blocks or exhaust blockage in the system, meaning there is a problem getting air into the unit for combustion.
The following are some of the common causes for this error code 10:
Improper installation
If your Rinnai tankless water heater's vents components are not properly connected or are not installed as per instruction diameters and lengths, air can fill the gaps and cause air leaks and subsequent blockage.
Obstructed heat exchanger and fan
Stuck debris and buildup can cause an error code 10 as these obstructions result in restrictions in the heat exchanger’s functions. If the fan is blocked, it can also cause bad fan motor bearing from trapped air that is not being properly expelled.