Emergency Tankless Water Heater Repair: What to Do When It Stops Working?


If you’re a homeowner, chances are you rely on your tankless water heater for hot water in your daily activities.

That’s why it can be very frustrating when your tankless water heater suddenly stops working. Not only can this disrupt your daily routine, but it can also lead to costly repairs or replacements if left unattended. Here, you will know what to do when facing a tankless water heater repair.

Tip 1: Check the Power Source

The issue with your tankless water heater might be as simple as a power disruption. Ensure that your heater is connected to a working power outlet. If it’s hardwired, inspect the breaker box to see if the circuit has tripped. This can happen due to a power surge or an overload. If that’s the case, resetting the breaker may solve the problem.  However, if the breaker continues to trip frequently, it signifies a more serious issue. In such circumstances, contacting a professional for the repair is advisable to avoid any further damage or potential safety risks.

Tip 2: Check the Gas Supply

Another possible reason for your tankless water heater to stop working could be an issue with the gas supply. If you have a gas-powered heater, check if the pilot light is on or if there are any issues with the gas line. Handling gas carefully is essential; it’s best to call a professional plumber for water heater repair if you’re unfamiliar with it.

Tip 3: Inspect for Water Leaks

Examining your tankless water heater for potential water leaks is a crucial step. Moisture around the unit or its connections may indicate a leak, which could cause your heater to malfunction. Leaks can damage the heater and affect surrounding areas, leading to more extensive repair needs beyond just the water heater. This is why it’s vital to routinely check for leaks as part of your tankless water heater maintenance schedule, especially if you’ve recently undergone a tankless water heater installation. Should you detect any leakage, act promptly to resolve the issue. If the leak is extensive or you’re unsure about the repair, don’t hesitate to contact a professional. Their expertise can help prevent further damage and ensure the longevity of your tankless water heater.

Tip 4: Clean the Air Intake Filter

The air intake filter plays a vital role in efficiently operating your tankless water heater. Over time, dust and debris can gather in this filter, restricting airflow and leading to operational issues. This could result in your heater shutting down unexpectedly or not producing hot water. Regular tankless water heater maintenance, including inspecting and cleaning the filter, will ensure your system operates optimally and lasts longer. 

Depending on the usage and the environment, you should clean or replace the air intake filter every six months. This simple yet critical maintenance task can prevent most issues that require emergency tankless water heater service. If you’re unsure how to clean or replace the filter, or if your system continues to malfunction despite a clean filter, it’s best to contact professionals such as Voyage Plumbing. 

Tip 5: Check for Error Codes

Most tankless water heaters have built-in error codes that can help diagnose the problem. Refer to your user manual for a list of error codes and their corresponding solutions. If you’re unsure, it’s best to call a professional plumber for assistance.

Tip 6: Flush the System

Over time, mineral buildup can accumulate in your tankless water heater, causing it to stop working. To prevent this, it’s recommended to flush the system at least once a year. This will help remove any buildup and keep your tankless water heater running smoothly.

Tip 7: Inspect Venting System

The venting system of your tankless water heater is responsible for removing exhaust gases from the unit. If it becomes clogged or damaged, it can cause the heater to stop working. Regularly inspect and clean the venting system to ensure proper functioning.

Tip 8: Consider Temperature Settings

Sometimes, the issue with a tankless water heater may be as simple as incorrect temperature settings. Make sure to check the temperature controls and adjust accordingly. This could save you from unnecessary repairs or replacements.

Tip 9: Call a Professional Plumber

Calling a professional plumber for water heater repair is always a good idea, especially if you’ve exhausted all other troubleshooting steps. A licensed plumber has the necessary experience and training to diagnose and address any complex issues with your heater. They can also provide valuable maintenance tips to ensure the longevity of your system.

In addition to repairs, plumbers can also assist with tankless water heater installation. This complex process requires expertise and knowledge about the specific unit and its specifications. Hiring a professional ensures that your tankless water heater is installed correctly, minimizing the risk of malfunctions in the future.

In conclusion,  experiencing a  malfunctioning tankless water heater can be stressful, but following these tips can easily handle the situation. Remember to regularly maintain your tankless water heater to prevent any future issues. And if all else fails, don’t hesitate to call a professional for assistance. Stay prepared and remember our tips; your tankless water heater will continue providing you with hot water for years. So the next time your tankless water heater stops working, you’ll know exactly what to do! 

Contact Voyager Plumbing Today!

Don’t wait! Address tankless water heater problems now to save money and stay comfortable. Contact our experts at Voyager Plumbing at 619-493-9003 for a prompt, cost-effective tankless water heater repair that allows you to enjoy an endless hot water supply.

Contact Us Today!

Voyager Plumbing

5.0 ★★★★★★★★★★ 16 reviews