Can a flooded water heater be repaired?

Asked By: Kirsten Medall | Last Updated: 27th January, 2020
Category: home and garden home appliances
4.4/5 (67 Views . 43 Votes)
Flood Damaged Water Heaters: Checks & tests for restoring a flooded or storm damaged water heater to service. The water heater might be salvageable, though if the heater was completely flooded as was its heat source such as a gas or oil burner, it may be beyond economical repair.

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Beside this, does a flood ruin a water heater?

Whether equipped with a conventional or a tankless water heater, both are susceptible to structural failure and may result in property damage caused by flooding. However, when faced with a leaking or flooding water heater: (1) Turn the water supply “off”. It is imperative that the heater have a working shut off valve.

Likewise, what happens if a water heater gets wet? Ordinary electric water heater that got wet is probably OK. Do not touch water heater that is wet or was wet. If insulation is VERY wet it must dry out before service is resumed otherwise trapped moisture creates problems such as corroded electrical connections at thermostats and elements.

Keeping this in consideration, how do you fix a water heater after a flood?

Add a few more steps to the process to make sure that your water heater is safely re-lit.

  1. Turn off the gas supply if you didn't get a chance to turn it off before the flood.
  2. Sweep as much dry muck off the water heater as possible, and clean all the supply lines, the overflow line and drain with a soft cloth.

How can we fix floods?

What to Do in the First 24 Hours After a Flood

  1. Avoid Additional Risks.
  2. Take Pictures.
  3. Protect Your Health.
  4. Call Your Insurance Company.
  5. Find Out if You're in a Disaster Area.
  6. Remove Water.
  7. Mitigate Mold Damage.
  8. Secure the Property.

32 Related Question Answers Found

How do I protect my furnace from flood water?

You can take precautions to protect your furnace, heat pumps and air conditioner from the ravages of water damage before flooding occurs.
  1. Move Equipment Higher.
  2. Floodwall Solution.
  3. Bacteria and Fungi.
  4. Check Appliances.
  5. Split Air Conditioners and Heat Pumps.
  6. Replace Damaged Systems.

Do water heaters normally leak?

Most water heaters last between 10 to 13 years, and if one is leaking from the bottom of the tank inside the burner compartment, old age might be the cause. This is caused by years of sediment building up in the bottom of the water heater tank. Eventually, the bottom of the tank will rust through and begin to leak.

How do you relight a pilot light?

Relight the pilot light.
Turn the knob to “Pilot,” and let gas to flow to the pilot. Light a lighter or match, then push in the reset button. Hold your flame to the pilot light's opening. Keep the reset switch depressed until the pilot light is burning steadily.

Will a furnace work after a flood?

The only way to be sure is to have a qualified licensed heating company perform a safety and efficiency inspection. Your furnace may be operating after the flood waters recede, but be warned this does not mean it is safe to operate.

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


A device called a thermocouple is heated by the pilot light flame. 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 do I turn on the water heater?

(4) Turn on the circuit breaker for the hot water heater.
  1. Step One - Close Open Faucets. If you were working on your hot water tank, you should have opened a faucet to allow air to get into the tank.
  2. Step Two - Turn On the Cold Water Supply.
  3. Step Four - Turn On the Water Heater Breaker.

Where is the thermocouple on a water heater?

The job of the thermocouple
The thermocouple is attached near the pilot light along the burner assembly, with the two ends of the metal placed in the flame of the pilot light, and the other end attached to a shut-off valve for the natural gas line that feeds gas to the burner.

What do you do if your basement floods?

Here are five tips for dealing with water in your basement.
  1. Remove water. Get water out as soon as possible.
  2. Dry it out. Use dehumidifiers and fans to move air around, discouraging the growth of mold and mildew.
  3. Scrub flooring.
  4. Examine and clear gutters, downspouts and drains.
  5. Freeze your assets.

Is the furnace the water heater?

Boilers are special-purpose water heaters. While furnaces carry heat in warm air, boiler systems distribute the heat in hot water, which gives up heat as it passes through radiators or other devices in rooms throughout the house. Residential boilers generally use natural gas or heating oil for fuel.

Is there a reset button on water heaters?


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.

Can water heater explode?

If the temperature is set too high or the pressure relief valve of a water heater malfunctions, a water heater can explode. This can happen with a gas or electric hot water heater. Although it is unlikely for water heaters to explode, when they do, they operate much the same as a rocket.

What are the signs your hot water heater is going out?

If you start to see water gathering on the floor, it is a pretty sure sign that your water heater is not doing its job. A leaking water heater should be replaced, but be sure to look into the problem before wrongly placing the blame. For example, check the surrounding pipes for leaks. Noise, noise, noise!

What causes a water heater to flood?

Since water heater valves may be defective or old and may leak, a regular check could expose any such problem before it gets out of hand and causes water heater overflow valve leaking. As you check the valve, keep in mind that the water in the tank is hot and can cause serious burns.

What do you do if your water heater is leaking from the bottom?

If you notice water seeping from the base of the valve, you'll need to replace the drain valve. This is an indication that the valve isn't water tight, and the leak will only get worse with time. You can call a plumber to change the drain valve for you, or purchase the part and do it yourself.

Can a thermocouple get wet?


Iron-Constantan thermocouples can generate a galvanic EMF between the twowires and should not be used in applications where they might get wet.

What happens if water gets into your furnace?

If your furnace's filter is dirty and clogged, it will restrict airflow through the furnace coil. Many times this causes the coil to freeze. However, sometimes it causes water to leak and pool up around the furnace. Make sure you always check the condition of your furnace's air filter and replace it if it's dirty.

How much is a thermocouple for water heater?

The No. 1 cause of pilot lights that won't stay lit is a worn-out thermocouple. It's easy to replace and a new one costs $5 to $10. Rather than trying to unfasten the thermocouple inside the water heater's burning chamber, it's easier to remove the whole burner and thermocouple assembly.