What is code 14 on Rinnai tankless water heater?

Thermal Fuse or Overheat An error code 14 indicates that your Rinnai is over heating. The issue could either be the bi-metal safety switch or the thermal fuses. Remove the cover and look for discoloration on the surface of the heat exchanger in the area where the combustion box meets the copper section.

What to do if your Rheem tankless water heater code is 12?

Use the included remote control to turn off the main power switch. Wait five minutes and turn the power back on. Turn the hot water faucet back on. Check the gas valve and open it completely if the error code is “11” and contact your gas company if the error code is “12,” indicating that the gas supply was interrupted.

What does it mean when Rheem says error code 03?

If your Rheem tankless water heater is showing an error code 00, it must be restarted. Close the hot water taps and remove or turn off the circulation pump if there’s any installed. Rheem error code 03 means there is a problem with the manifold control. Rheem error code 03 is found on units with MIC-180 or EZLink.

What to do if your hot water heater code is 15?

Turn the hot water faucet back on. Check the gas valve and open it completely if the error code is “11” and contact your gas company if the error code is “12,” indicating that the gas supply was interrupted. Open the hot water faucet fully if the error code is “15,” indicating a low hot water supply.

What does an error code 11 mean on a tankless water heater?

When there is a malfunction, an error code will appear on the LCD display. 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.

Is there an error code on my Rheem water heater?

Below are some of the most common Rheem error codes and what they mean. Rheem tankless water heater troubleshooting doesn’t have to be a difficult thing. That said, there are some errors you can easily fix yourself and some which should be left to a qualified service technician.

When to troubleshoot a Rheem tankless water heater?

1. Troubleshooting: Error No Code This happens mainly when the flow rate is low and there is a complete maintenance error. In such a situation, the control board simply displays the current temperature and the heater does not work at all. The first thing that you need to do is to adjust the flow or the temperature.

What does error code 12 on Rheem tankless mean?

Error Code 12 What it Means: Flame failure: The heater can’t maintain a flame. How to Fix: Check for proper grounding and that the device is receiving gas of the right type and pressure.Examine the flame rod to ensure it’s connected and has no carbon buildup. Disconnect the remote control, PC board, and all wiring harnesses, then reconnect.

What does the Rheem error code 65 mean?

Rheem error code 65 means there is a problem with the water volume control. While troubleshooting, Rheem error code 65, confirm the unit receives enough water and all wiring connections are in good working condition and tight. Replace the water control assembly or the PCB if necessary.