What is code 12 on Noritz tankless water heater?

A code 12 means the unit has a weak flame and that water is not being heated properly. Similar to a code 11, this is caused by lack of gas or airflow.

What does code 11 mean on a tankless water heater?

Bosh fault code 11 – Indicates a problem with the tankless water heater’s ignition. Typically, if you receive this fault code, your unit will not work. Before calling a licensed plumber, check to make sure your gas valve is open and supplying gas to the unit.

Why is my water heater keeps turning off?

If your gas water heater keeps turning off, the problem most likely lies with the thermocouple. This vital component detects when the pilot light is lit and then allows gas to flow to the burner. A faulty thermocouple will shut off gas to the burner as well as the pilot.

How do I fix my Rinnai Code 11?

Rinnai fault code 11 – No ignition. Check to make sure the gas is turned on at the water heater, gas meter or tank. Ensure the igniter is operational. If gas is being supplied to the tankless water heater and the igniter is working, call for an evaluation by a qualified plumber.

What does code 11 mean on a Rinnai?

No ignition
Rinnai fault code 11 – No ignition. Check to make sure the gas is turned on at the water heater, gas meter or tank. Ensure the igniter is operational. Make sure the heat exchanger is not clogged and that low water flow is not causing short cycling.

Why do I get a Noritz error code F76?

Noritz Error Code F76. This error code involves a breakdown in communication between two tankless water heaters using the Quick Connect Cord. It can occur when more than one remote is hooked up to handle two Quick-Connected units. Make sure that only one remote control is hooked up when two units are connected.

Why do I get an error code on my Noritz water heater?

Although Noritz builds its water heaters to the highest standards, from time to time you might get an error code on your unit. “These codes can diagnose problems that otherwise might remain unnoticed until unit failure, thus saving on repair and replacement costs,” says Randy Oshiro, Assistant Manager of Engineering at Noritz.

What does the Noritz error code 29 mean?

Noritz Error Code 29 This code indicates a problem with condensate drainage. In condensing tankless water heaters, a special drain line equipped with a neutralizer (to reduce the acidity of the outflow) removes the condensate.

What’s the error code on the Noritz cb180?

See the water heater manual or troubleshooting manual for your specific water heater model for expanded detail about the meaning and the corrective steps for each of these error codes. Image: the Noritz CB180 combination boiler, whole house dmoestic water heater, 18,000 to 180,000 BTUh and 0.5 to 9.1 GPM.

What is code 12 on Noritz tankless water heater? A code 12 means the unit has a weak flame and that water is not being heated properly. Similar to a code 11, this is caused by lack of gas or airflow. What does code 11 mean on a tankless water heater? Bosh fault code 11…