Tankless water heaters are intended to deliver continuous hot water. But what happens if power goes out or another factor causes the heater to lose power? What should you do if your tankless water heater fails to heat?
Don’t fret if your tankless water heater is malfunctioning; resetting may help resolve this issue. This article will walk you through resetting the water heater after a power outage so you can get back to taking hot showers right away!
Below are a series of steps that will walk you through resetting a tankless water heater.
Table of Contents
ToggleWhat Are Steps to Reset a Tankless Water Heater?
Switch off the Power:
Knowing how to turn off a tankless water heater when repairing or maintaining it is an integral step in any repair or maintenance job. Turn it off before making repairs or resetting changes before doing any of this work. Here’s how you can switch it off:
- Locate and turn off the heater switch in the dashboard or control panel if unsure, referring to your user guide if necessary.
- Switch the circuit breaker off or remove its fuse to shut down power to your heater if it runs on gas.
- Close any gas/line valves as necessary if running on natural gas.
- Verify the heater has been turned off by making sure no display lights are illuminated, and no hot water flows out of any faucets.
Remove the Cover Plate:
Cover plates can often be found on older tankless water heaters and must be removed using a screwdriver.
Cover plates on heaters typically rest on the front to protect the interior from weather damage and should be held by at least two screws. When you locate one, note that it may also include screws; remove and set aside both items before moving on to the next step. If no cover plate exists, skip to step 3.
Insulation Removal:
When you remove the plate, insulation is another barrier between it and the water heater. Remove all insulation from your tankless water heater.
Examine your insulation for signs of moisture. Moisture could indicate other issues; speak to your plumber if there is moisture present. If none exists, move on to step four.
Also, Read: Tankless Water Heaters vs. Hybrids
Locate the Reset Button:
Depending on its make and model, a tankless water heater’s reset button may be located anywhere. However, it can most commonly be found on its control panel – often marked by a small red button that reads “reset” or “power.”
Some of the latest tankless water heaters feature digital control panels with information display screens and reset buttons that you can force into action by pushing their “reset” buttons.
Some water heaters feature a switch that allows you to turn heating on or off. Carefully open the top panel and look for the “Reset” button or its wire connection near thermostats or heating components.
If you don’t know where the reset button of your water heater is located, consult its owner’s manual or an expert for guidance.
Also, Read: Can a Tankless Water Heater Be Installed In A Closet?
Press And Hold The Button Until The Heater Restarts:
Once you find and press the reset button on a tankless water heater, ensure it is in reset mode. Resetting is essential since it restarts all internal processes; any internal processes that had previously stopped running properly will resume once in reset mode.
Your tankless water heater will display a light. If this light turns green, you have done everything correctly. Allow 10 seconds after seeing this change for the red light to change to green before waiting ten more seconds as your tankless water heater resets itself and your heater has been reset successfully.
Search For Codes:
Check the water heater’s display to identify any Error Codes that have arisen after resetting it, as these could indicate repair needs before it can be used again.
Error codes on a control panel may appear as letters, numbers, or flashing lights. When one appears, make a note and consult the manual; these codes can help identify and resolve problems quickly and effectively.
Some tankless water heaters may not display error codes. If this is the case for you, follow your manufacturer’s troubleshooting procedures or seek professional assistance.
Reconnect the Power Supply:
Once your water heater has restarted and no error messages appear on the screen, you may safely reconnect its power source.
Check Your heater:
When setting out to test a water heater, allow several minutes of running hot water from a faucet before assessing whether the water temperature is adequate. Doing this allows air to escape the pipes and enables you to assess if the temperature of the water meets your standards.
Conclusion:
Tankless water heaters are essential in every household during winter, when water can quickly freeze over. Since a tankless water heater does not store water for its own consumption, mechanical failure may often be responsible. By knowing how to reset a tankless water heater, you will make using it easier; follow our suggestions above to efficiently reset and use your heater.