Error codes for Rinnai Tankless Water Heater

Rinnai is a manufacturer of many different types of water heaters, and they are known for making high quality products. Rinnai makes many different kinds of water heaters, including tankless water heaters. Tankless water heaters are very efficient. They use less water than traditional water heaters and are very energy efficient.

Tankless water heaters are a great way to save water, and they work in many different ways. This is because tankless water heaters use less water, save energy, and warm up water quickly.

But there are some problems that can occur when using a tankless water heater, just like there are problems with many other types of products. This article will tell you some of the most common error codes that are associated with these types of water heaters and offer you some helpful tips on how to handle them.

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Error Code 12: Flame failure

Problem with gas or gas line. Most people will need to call a plumber to handle this problem. You may not be able to fix the problem yourself, but you can try some of the steps that a plumber will take.

Check the power supply. If there is a problem with the power supply, call a plumber. There may be loose connections between some of the components in your tankless water heater. Are there any other parts that are leaking?

What is the current that is flowing to the water heater? What is the rated voltage in the water heater? What about a possible voltage drop? Can you see the voltage drop?

Check that the flame rod wire is connected to the water heater and that the water is being heated appropriately. Problems with carbon buildup on the flame rod of the unit. You should call a plumber to handle this issue.

Error Code 14: A defective thermal fuse

Something is wrong with the thermal fuse that protects the water heater against heat loss.

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Check for water flow restrictions. Is the water inside the tank not flowing smoothly? Is the flow of water in the circulating system too low?

It is possible that there is something that is wrong with the water heater that you are trying to use, and the problem could be that it is hard to stop short-cycling the system.

Check the exhaust pipe for obstructions. Some people say that the tank is clogged and the heater is not running properly. Problems with thermal fuse function are caused by obstructions that can cause problems with thermal fuse function.

Hot spots on the heat exchanger are signs that it is leaking hot water. Hot spots indicate that there is scale buildup in the heat exchanger. Flush the heat exchanger according to the recommendations in your owner’s manual.

Check the resistance of the safety circuit. You may need to call a plumber to deal with this issue. Error Code 15: The safety circuit is not working.

Error Code 16: Over temperature warming

Most likely, there is a restriction in the amount of air that can pass through the water heater. Check for any clogs or obstructions in the following combustion chamber.

Check to see if there are any restrictions in how much air can pass around the unit or around the vent, or if there is low water flow in the circulating system that may cause problems with the water heater, like a short-circuiting problem.

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