Tankless Hot Water Heater Ignition Problems

Undersized gas lines can place stress on the water heater reduce its expected lifespan and even be a warranty violation for some manufacturers.

Tankless hot water heater ignition problems.

We ll come out to assess your tankless unit and identify the root cause. Example tank is a john wood 40 gallo. Check your unit s manual for steps on what the code could mean and if it could possibly be an error. Most tankless water heaters operate off a 1 2 inch or 3 4 inch gas line.

Last year navein had pulled back almost 3 400 on demand water heater tank less for the second time due to co contamination but the scenario of the first time was a bit different in 2009. The ignition failure on tankless water heaters can occur to any brand and model no matter how advanced or not is. No hot water often related to the flame failure and no ignition water is too hot. Since tankless water heaters need a minimum amount of water flow before activating there s a gap between completely cold water and the coolest warm water that you can create with a hot and cold water mix.

Common problems and how to fix them. Here are six of the most common problems and maintenance concerns for tankless water heaters. With so many wires and small parts tankless hot water heaters can have a long list of possible problems. Water is not hot enough.

The failure can be caused by a problem inside the water heater or due to an external cause. If you have an older tankless water heater 10 years old the problem is most likely that the minimum flow rate is too high. He pilot light can go out or fail to ignite and the sensors can simply quit working without any explanation. Mineral buildup system overload cold water sandwich air supply or exhaust blockage ignition failure flame failure.

The air supply and specialized exhausts have a tendency to get blocked which usually makes the device shut down. You see every tankless water heater has a minimum flow rate which is the minimum amount of water measured in gallons that the tankless unit needs flowing through it every minute gpm to produce hot water. How to diagnose and repair a faulty atmospherically vented gas fired water heater. The burner is too noisy.

Be sure to take note of the warning message and time for a more accurate report. Burner does not ignite. Common tankless water heater problems hot water is not delivered instantly and other common tankless water heater problems are listed below. On that time navien tankless water heater problems were about technical issues.