Noritz Tankless Water Heater Problems

Noritz Inc was established in 2006 and has since then made a name for itself as one of North America’s leaders in terms of home comfort. They provide a wide variety of high quality tankless gas water heaters, widely renowned for being outstandingly durable and efficient heating solutions.

Despite their products being made to such high standards, no human invention can go without its flaws, and your water heater can easily run into variable issues like failure to heat the water up. This article was meant to highlight some of the most common Noritz tankless water heater problems people face. It should also help you fix whatever issues may run into.

miami Noritz Tankless Water Heater

source southwestplumbingservices.com

Common Noritz tankless water heater problems

Here are some of the most prevalent Noritz tankless water heater problems faced by consumers.

The hot water tap is open, but no water is coming out.

Perhaps the most common problem, this arises as a result of the water outlet being clogged by debris, ice, etc. If this is the problem you’re facing, do the following:

  • Ensure that the water inlet filter is not clearing (not clogged) or otherwise clean.
  • Check of the water heater is frozen.
  • Check your front panel for an error code being displayed. If so, refer to your manual and countercheck what problem the code points at. If there is no error code, the simple fix could turn out to be to open all the shut-off valves on the hot and cold pipes..

The water from the hot water faucet is cold

If this problem affects you, try and resolve it by doing one of the following:

  • Ensure that the water inlet filter is clean.
  • Countercheck the hot water faucet to see if it’s open wide enough.
  • If there is an error code on the front panel, follow the instructions in the user manual to find out how you can fix it.
  • Depending on your model, check for the presence of an external recirculation system. If there is a check valve on the recirculation return line, try one of the following solutions:
  • Check your cold water inlet filter for dirt or debris that may be clogging it. Either clean it on your own, or if you don’t know how, refer to the manual for instructions on the proper way of cleaning it.
  • Last option - maybe it passed the top of your head but, try opening the hot water faucet all the way.

It takes too long for hot water to reach the fixtures

  • Once again, this depends on your Noritz tankless water heater model. If you have one that has an external recirculation mode, the most viable method of fixing your problem is to have a contractor install you a recirculation return line. This is usually done at the faucet furthest from the water heater.

The Water from the hot water faucet is not hot enough

  • Believe it or not, 9/10 times this happens, it’s because of not setting the temperature on the thermostat high enough. Check the thermostat to see if the temperature is set too low.
  • Alternatively, check for cross plumbing between the cold water pipes and the hot water lines.

The water is too hot

  • Once again, this is an error often made out of ignorance. Check your thermostat to see if the temperature has been set too high.

Other minor problems with Noritz tankless water heaters

Most other problems are accompanied by an error code on the water heater and can be solved by following the instructions on in the manual. The last resort to follow if all else fails would be to reset your Noritz tankless water heater system. This can be done by pressing the Reset button located on the front panel.

However, if none of the solutions on this list help you out and you’re completely unable to fix the heater, your best bet would be to call an authorized technician for assistance.

Common Error Codes

1

E030

This error signals an exhaust overheat, leading the exhaust high limit switch to shut down the unit when the flue temperature reaches or exceeds 149 F.

  • Turn off the heater for around 30 minutes then restart it.
  • Check for a clog in the automatic flow adjustment valve.
  • Clean for any blockages in the inlet water strainer.
  • Remove and clean the heat exchanger with a cleaning solution.
2

E016

This error is as a result of overheating of the heat exchanger.

  • Turn off the heater for around 30 minutes then restart it.
  • Check the inlet water strainer and clean it if necessary.
  • Check the automatic flow adjustment valve.
  • Remove and clean the heat exchanger with a cleaning solution.

Additional Notes

The most important thing to remember when trying to figure out Noritz tankless water heater problems is that regular maintenance helps prevent most of these problems in the first place. Make sure you clean your heater regularly and drain it before performing these maintenance tasks for the most efficient heating solutions.

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