How do you reset a tankless gas water heater?

Asked By: Ampar Erortegui | Last Updated: 20th March, 2020
Category: home and garden home appliances
5/5 (2,713 Views . 20 Votes)
You may easily reset the electric reset button by pressing the red button. Some unit comes with the lower thermostat reset button. In this situation, you need to push the reset button too. When you push the buttons, but they don't reset instantly, some parts of the water heater may cause the problem.

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Subsequently, one may also ask, why is my tankless water heater not working?

Because tankless units only heat water as it's needed, running too many hot water appliances at the same time could mean the unit just can't keep up. On the other hand, your “no hot waterproblem could be cause by a bigger issue such as: Plugged heat exchanger (due to hard water) A blocked vent/air intake.

Also Know, how do I reset my water heater? Part 2 Pressing the Reset Button

  1. Locate the red reset button. There should be a red button in the center of the control panel.
  2. Press the button firmly. The reset button can sometimes be sticky, especially if you haven't reset the heater in a while.
  3. Wait to hear the button click.

Likewise, how do I reset my Eemax tankless water heater?

To reset this device:

  1. Make sure the power to the heater is turned off at the circuit breaker(s) and verify it's off at the heater with an appropriate electrical tester.
  2. Remove the cover to the heater.

What are the disadvantages of a tankless water heater?

The primary disadvantage of on demand or instant hot water heaters is the upfront cost. The smaller units that you often see won't produce enough hot water to serve most households. They'll only serve one faucet at a time—a problem if you want to shower while the dishwasher is running.

27 Related Question Answers Found

Why does my tankless water heater go cold?

Another problem that tankless water heaters can run into is that of a cold water sandwich—a plumbing term given to sudden temperature fluctuations, when your tankless water heater produces hot and cold water intermittently. This can be caused by: A dirty water filter on the cold water inlet.

What trips the reset button on a hot water heater?

While a bad thermostat is the most common reason your water heater's reset button may trip, it's not the only one. Other common causes include: A shorted heating element—It may be that the thermostat is working just fine and shutting off the heating element.

Do tankless water heater takes long time to heat up?

If you have a tankless water heater then you probably already know that it takes longer to get hot water with a tankless water heater than with an old fashioned storage tank type water heater. Typically tankless water heaters take 10 to 20 seconds longer to get hot water to the fixtures. But you can turn it green!

Do tankless water heaters need to be serviced?


Tankless water heaters should be maintained by a professional at least once a year. But, you may need to get your water heater twice a year if…

Can a tankless water heater run out of hot water?

Instead of constantly heating water in a stored tank, tankless units only heat water as you need it. Since tankless heaters heat water as it flows, you'll never run out of hot water. Tankless heaters also last five to ten years longer than a storage tank model.

Why does it take so long to get hot water from my tankless water heater?

Some fixture mixing valves also create issues with tankless water heaters because of the way they balance flow between the hot and cold feeds. Most gas tankless water heaters also have a 10–15 second delay as they go through their ignition sequence.

Why is only my cold water working?

Try Cold Water
Heater issues can happen for a couple reasons–it could simply be turned off or unplugged, or sediment buildup could be blocking the heating element. The heater might even be leaking. Try flushing the heater and then giving it time to heat back up.

How do you turn on a eemax water heater?

Shut the water off to the unit and then remove the bung from the fitting. Now replace the fitting and with the faucet open fully see if the light comes on now, with water flowing through the unit. 4 If the heater now turns “on” with water flowing, call Eemax at 1-800-543-6163.

Do all hot water heaters have a reset button?


The water heater reset button is the red button located on the water heater itself (just above the thermostat). Some water heaters may have two reset buttons-one for each thermostat. To access the reset button, you may have to remove the metal plate covering the thermostat that's held in place by screws.

How do I reset my heater?

Turn the power back on and then the main gas supply. Locate the reset button. It is labeled, sometimes in red. Press and hold the reset button for 30 seconds.

How do I reset my thermostat?

Here are the steps you need to take to reset your AC thermostat.
  1. Shut Down Your AC at the Thermostat. The first step in resetting your AC thermostat is to turn it off at the AC unit.
  2. Find Your Circuit Breaker Box.
  3. Reset the Circuit Breaker for Your AC Unit.
  4. Wait 30 Seconds.
  5. Turn the AC Thermostat Back On.

Is it dangerous if the pilot light goes out on water heater?

As long as the thermocouple remains hot, gas is supplied to the pilot light. If the pilot light goes out, the gas is shut off and there is no danger of gas accumulating because the pilot light is out.

How can you tell if your water heater is going out?

Here are a few telltale signs that indicate your hot water heater is not working properly and likely requires service.
  • Poor Water Quality.
  • Leakage.
  • Inconsistent Temperature.
  • Water Takes Forever to Heat Up.
  • Things That Go Bump in the Night: Your Water Heater.
  • Age.

How do you check the pilot light on a water heater?


How to Light a Water Heater Pilot Light
  1. Open the door/cover over the pilot light access.
  2. Use a flashlight or a headlamp to find the burner inside.
  3. Turn the gas knob to “Pilot,” press and hold it down.
  4. While still holding the gas down, light that pilot.
  5. When the flame ignites, continue to hold the gas knob or button down for a full minute.

How long does it take for hot water to reset?

Once your water heater has been drained, it will need time to recover so that it can deliver hot water again. On average, a 50-gallon tank will take approximately 20 minutes to refill, and it could take at least another 20 minutes to heat the water.

Why is hot water not working?

If you have a gas hot water heater, then your problem may be caused by a leak in the gas line leading to the appliance. In the case of not enough hot water, or hot water that is not hot enough, it may be that you need to replace the heating element on your water heater. Sediment buildup.