Emergency Plumber Arlington TX
Fort Worth Area Plumber
Arlington Area Plumber


6 Common Tankless Water Heater Problems and How to Solve Them | Tankless Water Heater in Rhome, TX

6 Common Tankless Water Heater Problems and How to Solve Them | Tankless Water Heater in Rhome, TX

Photo By lomiso at Shutterstock

If you are familiar with tankless water heaters in Rhome, TX, you must have heard a lot of good things about them. You’ve probably heard about the benefits of installing a tankless water heater such as the less occupation of space, low electricity bills, and an uninterrupted supply of warm water. You must have also heard about its ability to keep the environment clean and safe.

Investing in a tankless water heater in Rhome, TX can be advantageous, but sometimes, things do not go as planned.

While tankless water heaters are becoming popular, it doesn’t mean that they are indestructible. In this article, you will discover a variety of problems that occur with a tankless water heater in Rhome, TX. Also, you will learn about ways to deal with those problems so that they do not happen again.

1. No Ignition

One of the major problems with a tankless water heater is ignition. There are times when your tankless water heater in Rhome, TX fails to ignite. This problem with ignition occurs for a number of reasons, the most common of which is the inadequate supply of gas. As a user, it is your responsibility to determine whether or not you have run out of gas. Furthermore, the gas valves that aren’t fully open hinder the ignition process.


In order to figure out the issue, you need to take a close look at the following three things.

  • Propane tank
  • Gas and water valves
  • Ignition pack.

If you still fail at figuring out the root cause behind the ignition problem, it is best to seek professional support.

2. Mineral Buildup

It doesn’t matter whether you use a tankless water heater or a conventional one; you need to take care of the mineral buildup inside your unit. Calcium and magnesium are the two elements that buildup inside your unit. Timely action is necessary, for if the two are allowed to stay, they will damage your tankless water heater in Rhome, TX.


The good news is that getting rid of the mineral buildup inside your tankless water heater in Rhome, TX is an easy DIY job.  All you have to do is to clean and flush your unit once in every six months with a descaling cleaning kit.

3. Flame Failure

This one is similar to the ignition problem we discussed a couple of paragraphs earlier. Here are three reasons behind flame failure in a tankless water heater in Rhome, TX.

  • Lack of ventilation
  • Narrow gas line
  • Regulator failure


When dealing with this problem, it is better to stick with the basics. Take a look at your propane tanks and the venting in your tankless unit.  In order to keep the flame going, it is very important that the vents are not closed or blocked.

4. Constant Temperature Fluctuation

If you have experienced constant fluctuation of temperature while you shower, you are not alone. This problem is also referred to as the cold water sandwich. Let’s assume for minute that you take a shower right after someone else and come out. You’ll be met with cold/ hot water immediately, which makes you feel uneasy.


To begin with, a tankless water heater in Rhome, TX, works much faster than a traditional heater but not instantaneously. It takes some time, before the water is perfectly alright for you to shower with.  This isn’t actually a problem, but simple mechanism of a tankless water heater. Therefore, everything is perfectly alright and no fixing needs to be done.

5. Tankless Water Heater Shuts Down When Taps Are Running

Just like with any other machine, this is a simple problem of overload. Every tankless eater heater in Rhome, TX has a capacity beyond which it fails to perform. This happens when you are using multiple showers or water faucets at the same time. Your tankless water heater will fail to supply hot water when multiple faucets are being operated simultaneously.


In order to solve the issue, the following three tips can be of use.

  • Do not use multiple water faucets, taps and showers at the same time.
  • Upgrade the capacity of your tankless water heater in Rhome, TX.
  • Consider replacing the existing tankless water heater with a new one.

6. Blocked Air Supply or Exhaust

Have you ever received a message on your unit, that your air supply is blocked? This is a sign that your tankless water heater in Rhome, TX is no longer useful. When such a message pops up, chances are that there is a problem with the combustion or ventilation.


The first thing that you need to do is take a look at any obstruction, which might be hindering your ventilation.  It could either be due to a small household object or something from the outside like wasps and rodents. Next, take a look at the vent pipes to make sure they are not loose, and connected properly to the unit. If the vent pipes are punctured, it is better to have them replaced, instead of taping them.


Many of the problems that occur with you tankless water heater can be prevented in the earlier stages. Things like mineral buildup and other minor breakdowns can be dealt with, using easy DIY methods of maintenance a tankless water heater in Rhome, TX. If you take timely action on the small flaws, you won’t have to call a plumber.

However, if the issues are out of your control don’t worry for we have got you covered. We are a reputable plumbing company, that provides the most effective plumbing services in Texas. To avail the finest plumbing services, visit our website now.